FLEXIBLEMOUNTINGSFLEXIBLEMOUNTINGS

• New Barry Controls range

• New STRASONIC ® acoustic range

• New S.L.F. ® mount

F L E X I B L E M O U N T I N G SI - INTRODUCTION

II - DEFINITIONSII.1 Flexible MountingsII.2 Flexible Mounting Systems

III - FUNCTION OF A FLEXIBLEMOUNTING SYSTEMIII.1 Static functionIII.2 Dynamic functionIII.3 Various types of flexible mounting systems

IV - DESIGNING A FLEXIBLEMOUNTING SYSTEMIV.1 Determining the centre of gravityIV.2 Determining the load per mountingIV.3 Determining the deflectionIV.4 Design examples

V - PAULSTRA RANGEMountings selection guideMountings application guideRADIAFLEXPAULSTRADYNSTABIFLEXSTABIFIXTRIAXDYNENGINE MOUNTINGSS.C. MOUNTINGSEVIDGOMS.T.C.STOPSNIVOFIXMINIFIXTRAXIFLEXBATRA RINGBECAPOLYFLEXS.C.P. MOUNTINGSISOFLEXISODYNES.L.F. MOUNTSSANDWICH MOUNTINGSELIGOSUPPORTS AND BUMP STOPSOTHER MOUNTINGSLong Travel AIR SPRINGHEAVY DUTY FENDERSSTRASONIC RANGEIndex

VI - VIBRACHOC RANGEMounting application guideE1V3245-04 to E1V4059-11VIBMARTYPE XARDAMPE1C2321/E1T2105ELASTOMER MOULDED PARTSELASTOMER PLATESE1E11/E1E12/E1E13E1E21/E1E22/E1E23E1E31/E1E32E1E41/E1E42/E1E43Index

VI - BARRY CONTROLS RANGEPNEUMATIC MOUNTING SLMMOUNTING 22000CUPMOUNTRINGS AND BUSHINGSFLEX6LOCGB530Index

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- INTRODUCTION

The reduction of noise and vibration has become very important :

• The need to improve conditions makes it essential.

• The increasing mechanisation of industrial and domestic activities make it necessary.

• The lightness and increasing complexity of equipment demand it.

The following pages are dedicated to protection against vibrations and shock. They offerdesign engineers the means to resolve isolation problems using elastomer alone or elastomerbonded to metal supports.The first few pages start, therefore, with a summary of definitions and an explanation of theterminology used as well as the principal formulae on which suspension calculations are based.The design of a flexible mounting system is a major undertaking and is the subject of a specialsection which gives the principles used to select a mounting according to its size,characteristics, type and applications.

Warning : solving flexible mounting system problems very often requires the services of aspecialist and we advise, very strongly, that if a simple solution cannot be found, then ourTechnical Services should be consulted.

I

3

F L E X I B L E M O U N T I N G S

- DEFINITIONS

II.1.1 - Properties

- Flexible mountings are components which exhibit both flexibility and damping, at the sametime and to varying degrees.

• Flexibility- Flexibility is the ability of the mounting to deform and recover, with an amplitudeapproximately proportional to the load.

• DampingDamping is a braking force the most important effect of which is the reduction of oscillations.There are essentially two types of damping :- Constant friction (dry friction) which, for a given setting, provides a constant braking forceindependent of the movement. For there to be movement, it is, therefore, necessary to apply aforce at least as great as the frictional force.- Viscous damping (such as that provided by hydraulic dampers) which provides a brakingforce proportional to the instantaneous velocity of the suspended part relative to the fixed part.Viscous damping is, therefore, essentially dynamic : it does not affect the position of staticequilibrium.

II.1.2 - Environmental conditions

Most of the standard mountings are made of natural rubber which has been chosen because ofits good dynamic properties.Under normal operating conditions, these rubber compounds guarantee stability over longperiods and, in particular, limited creep.The following operating conditions are considered abnormal :

• temperatures greater than 70°C,• prolonged contact with corrosive liquids,• prolonged contact with acids or alkalis,• aggresive environment (oils, fuels),• corrosive gases (ozone, chlorine...).

Using a mounting unintentionally under such conditions can lead to premature ageing,degradation or even destruction of the rubber.An abnormally agressive environment can, in particular, increase the deformation of themounting (creep).

PAULSTRA flexible mountings may be made using various special compounds that arehighly resistant and able to withstand the abnormal conditions described above.Our Technical Services are at your disposal to reply to any queries about the properties ofparticular compounds.

II.1.3 - Elastomeric flexible mountings

Mountings using natural or synthetic elastomers always provide a combination of pure elasticityand viscous damping. Although commonly used, the term “shock absorbers” is completelyincorrect. The two characteristics, flexibility and damping, are, in fact, essentially different : arubber mounting may be compared to a car suspension where the two functions are providedby different components working in parallel :

• true elastic suspension provided by springs,• damping provided by hydraulic damping (shock absorbers).

A flexible mounting using rubber = a spring + a damper.

II

II.1 - FLEXIBLE MOUNTINGS

4

A machine is suspended elastically by placing flexible mountings between the machine and itsseatings (floor, slab, chassis, etc.). The type of mounting, its number, distribution, positioningand individual characteristics, depend on the overall characteristics required by the suspensionto give the desired result.The most common problems are those where vibration determines the essential characteristicsof the suspension. It is necessary, therefore, to start with a presentation of the terminology anda review of the most important definitions and principles.

II.2.1 - Vibration theory conceptsA machine, suspended elastically, vibrates when it is subject to periodic alternate influenceswhich produce oscillations of greater or lesser amplitude.There are two main modes of vibration :• Natural or free vibration, which is the vibration of the machine that occurs when it is released

after having been displaced from its position of equilibrium,• Forced vibration, which is imposed on the machine, either by its own operation, or by

influences from its surrounding.

• Degrees of freedomThe number of degrees of freedom is the number of independent parameters which determinethe position of the machine at any given time.Degrees of freedom of movement :• Linear movement parallel to a given axis (the independent parameter is the displacement

along the axis),• Rotation about a given axis (the independent parameter is the angle of rotation about the

axis).

• Vibrations with only one degree of freedomThe following discussion applies to vibrations with only one degree of freedom : a linearvibration parallel to a fixed axis.• Periodic vibration :- Frequency : Number of complete cycles in a unit of time.

N = Number of cycles per minute.n = Number of cycles per second (Hertz).

- Period : Duration of one cycle.1

T = ___ (seconds)n

2π- Angular frequency : ω = 2π n = ____ (radians per second).

T

II.2 - FLEXIBLE MOUNTING SYSTEMS

5

II.1.4 - Characteristics of elastomeric flexible mountings• Elastic propertiesThese are the parameters which define the ability of the mounting to be deformed in variousdirections.- The linear stiffness Kx, along the axis Gx is the ratio of the force to the correspondingdisplacement along this axis. The linear stiffness is expressed by daN/mm.The linear stiffness (Ky, Kz) for the other axes (Gy, Gz)are defined in the same way.- The torsional stiffness (Cx, Cy, Cz) about the three axes (Gx, Gy, Gz) is the ratio of the torqueto the angular displacement about the axis.The tortional stiffness is expressed in m.daN/rad.These six parameters, which are not independent of each other for a given mounting (theinterdependence changes with the shape and structure of the mounting) are proportional to theYoung’s modulus of the elastomer used in the mounting.Using these six values, it is possible to calculate the stiffness along or about any arbitrary axis.

• Damping propertiesThe most useful parameter is the “intrinsic damping factor” of the elastomer used. This will bedefined for a suspension (§ II.2.2). The intrinsic damping factor of a mounting is the same as thatof the suspension.

- Maximum amplitude: The maximum offset from the equilibrium position for each cycle. For aforced vibration under constant conditions, the amplitude remains constant.

• Sinusoidal vibration x = A sin ωt (fig.1)

1 ω- Frequency n = __ = __

T 2π- Amplitude A - Instantaneous amplitude x = A Sinωt- Maximum velocity V = Aω - Instantaneous velocity v = Aω cosωt- Maximum acceleration Γ = - Aω2 - Instantaneous acceleration γ = - Aω2 Sinωt

High frequency vibrations (high ω) may, therefore, produce very high accelerations even at lowamplitudes.

II.2.2 - Characteristics of flexible mounting systems

• Elastic propertiesThese are the parameters which define the freedom of a machine to move with respect to itsseating. The movements are, usually, referred to an axis system (Gx, Gy, Gz).

In the example in figure 2:

• The origin of the axis system is at the equilibrium position of the machine’s centre of gravity.• The axes are parallel to the axes of symetry of the machine.

As for mountings, the stiffness of a suspension is defined for displacements with only onedegree of freedom relative to a fixed set of axes.

6

Fig. 1

Am

plitu

de

Timet

1 2 πΤ = __ = ___n ω

π__ω

A

-A

0

x

π___2ω

3π___2ω

2π___ω

2π___ω

Fig. 2

Yaw

Verticalmovement

Transverse

movement

Pitch

Longitudinalmovement

Roll

G

- Linear stiffness :

Kx along Gx = longitudinal movementKy along Gy = transverse movementKz along Gz = vertical movementFor each axis, the linear stiffness is the sum of the linear stiffness of all the mountings.

Kx = Σ kx Ky = Σ ky Kz = Σ kz

- Torsional stiffness :

Cx about Gx = rollCy about Gy = pitchCz about Gz = yaw

The torsional stiffness of the suspension depends on :• The individual stiffness of the mountings,• The position and orientation of the mountings with respect to the centre of gravity G of the

machine.

• Damping properties

Elastomers exhibit viscous damping, the braking force applied to an elastic suspension is R x V,where :R is the resistance,V is the relative velocity of the suspended machine at time t.

If, starting with an undamped suspension, the damping is progressively increased (with allother factors remaining constant) the amplitude of the free oscillations, starting from a giveninitial offset, die away more and more quickly.The value of damping for which the return to the equilibrium position is asymptotic(without oscillation) is called the “critical damping” and is denoted by a resistance Rc.The damping factor ε is defined for a resistance R :

Rε = ___ (ε = 1 for critical damping)Rc

When suspension is subjected to forced vibrations at a frequency ω, it has been shown that, fornatural elastomers, the product ε ω remains reasonably constant. This is equally true at theresonant frequency (see below).

ε ω = εo ωo constant (ωo : is the resonant frequency).εo being the damping factor at the resonance frequency.

It can be shown that εo is an intrinsic property of the elastomer used.

εo = intrinsic damping factor.εo of a suspension = εo of each mounting (if all mountings use the same elastomer).

• Electrical characteristics

Elastomers have an electrical resistance which varies according to their composition, hardness.As a guide, the following values have been measured for our standard elastomers.

Natural Rubber hardness 45 1013 Ohm x cm2/cmhardness 60 106 Ohm x cm2/cmhardness 75 104 Ohm x cm2/cm

We have also developed special elastomers which can have a dielectric strength greater than2,000 Volts for 1 minute.

7

• Creep characteristics

The following formula, which is derived from measurements on samples, gives an estimate ofthe creep for a load which compresses a Radiaflex mount by 10% of its height at a temperatureof 30°C.The creep for an actual mounting also depends equally on its shape.

Static deflection at time t = initial static deflection x (1 + Cm x f(t))where f(t) is the value of the creep from the graph below :

Creep f(t) in compression relative to the initial static deflection.

and Cm is a correction coefficient taken from the table below according to the sample material :

Note :These values are given as a guide only. Consult us for use under other conditions (temperature,complex profiles or other elastomers).

Mounting :For applications where alignment is important, to overcome the problems of initial creep of theelastomer mountings, adjustment to align the axes of shafts should be made at least two daysafter the machine has been mounted.

Material

Standard naturalrubber

Polychloroprene 1.1 1.6 1.6

1.0 1.6 1.7

Hardness 45 Hardness 60 Hardness 75

8

t (time in days)

0.2

0.15

f(t) 0.1

0.05

050 100 150 200 250 300 350 400

- FUNCTION OF A FLEXIBLEMOUNTING SYSTEM

This is the primary function of elastic suspensions where there is vibration or shock. Thecalculations presented here assume that the linear stiffness of the mountings remainsconstant. This is true for elastomeric mountings in normal conditions of use (mechanicalvibration, normal temperature).

III.2.1 - Vibrations with only one degree of freedom

The action of a flexible mounting system is very complex. To present the principles, we willstudy a simple idealised case (fig. 3).

Taking the case of a machine of mass M constrained so that it can only move in a directionparallel to the vertical axis Gz.

It is attached to its seatings by a flexible mounting S with a stiffness K along the axis Gz.

An elastic suspension allows the static load to be more evenly distributed.If a machine rests on more than three points using “rigid” mountings, it is impossible to predictthe load on each mounting and the machine could be unevenly stressed.

With elastic mountings having known stiffness, it is possible to determine (by calculation, ordirect measurement) the deflection in each mounting and thus deduce the loading and correctany imbalance.

An elastic suspension accomodates minor differences in the distance between mountings.However many mountings there are, in order to avoid excessive local stresses, a rigid assemblyrequires very close tolerances on the distance between mountings and of the mating surfacesof the machine and its seatings.

To avoid prohibitively close manufacturing tolerances, “play” is allowed in the mountings whichgives rise to the well known problems of wear and noise due to loose fixings.

Flexible mountings allow larger manufacturing tolerances without large variation in forces.

An elastic suspension can also absorb small movements due to, for example, the expansion orthe deformation of chassis, bodyshells, girders, etc.

III

III.1 - STATIC FUNCTION

III.2 - DYNAMIC FUNCTION

Fig. 3

9

F l e x i b l emounting S

Machine

G

M

Z

• Free oscillation (natural frequency)a) Undamped (entirely theorical)The machine, having been displaced from its position of equilibrium by a distance A, oscillatessinusoidally.The equation of motion is: z = A sin ωo t

K ωoThe natural pulsation is ωo = √ ___ Proper frequency Fp = ____M 2π

The oscillation continues indefinitely with an amplitude A (as shown in Fig. 1 with ω replaced byωo).

b) Damped In this case, the machine oscillates about its position of equilibrium with a damped sinusoidalmotion (see Fig. 4).The equation of motion is:

-ε’oω’otz = A.e .sin ω’ot

The natural pulsation is:

Kω’o = √___ (1 - ε’2 ) = ωo √1 - ε’2

M o o

ε’o is the damping factor at the frequency ω’o.

As ε’o is very close to εo, the natural frequency may, therefore, be written as:

ω’o � ωo √1 - ε2o

For natural rubber, εo is small by comparison with 1 (from 0.02 to 0.1).ω’ο is, therefore, very close to ωo.

2π___ωo

2π___ωo

5π___2ωo

π___2ωo

3π___2ωo

7π___2ωo

z

A

0 t

Fig. 4

10

The variations of the transmission, coefficient λ, as a function of ω for various values of ε0 areshown in fig. 5 (page 13). ω0

Attenuation 2For rubber mountings, the term 4 ε 0 is much smaller than 1. The attenuation in % is 1 - λ :

ω 2(ω0 )- 2 1E% = 100 _______ or 100(1- _______ )

ω 2 2(ω0 ) - 1 ω(ω0 ) - 1

For a given induced frequency ω the attenuation depends on the natural frequency of thesuspension.For a particular direction, the relationship between the natural frequency, the suspension’s sub-tangent and the induced frequency are plotted on the chart fig. 6.For a particular induced frequency (for example 1500 rpm) it is possible to find the sub-tangentwhich will provide an acceptable attenuation. In general, an attenuation greater than 50% isrequired. For this example, the chart indicates that an attenuation of 80% will be achieved for anatural frequency of 10 Hz (see section IV.3.1).

2F'M 1 + 4 ε0λ = ____ = √_____________ FM (1 - ω

2 )2 + 4 ε

2

0ω02

• Forced VibrationIf the machine is now subject to forced vertical vibration induced by a sinusoidal force offrequency ω.The inducing force is F = FM sin ωt.

- For a rigid suspension : the inducing force is transmitted directly to the structure the machineis mounted on.

ωο- For an elastic suspension with a natural frequency ωο or proper frequency Fp = ____ anddamping factor εo : 2π

When the inducing force is applied, an oscillation is induced at the natural frequency ωο whichdies away rapidly so that, after a short period, only the steady state forced vibration at frequencyω remains which transmits a sinusoidal force to the surrounding structure.The force transmitted is : F’ = F’M sin ωt.A transmission coefficient λ is defined as the ratio between the amplitude of the forcetransmitted F’M to the amplitude of the inducing force FM (or, if preferred, the force that wouldbe transmitted if the suspension was not elastic).For a mounting system using elastomeric mounts, this coefficient is :

To summarise :

11

Rigid system

Flexible system(ω0, ε0)

Inducing force Transmitted force Transmission coefficient

F = FM sin ω t F = FM sin ω t λ = 1

F = FM sin ω t F’ = F’M sin ω t

2F'M 1 + 4 ε0λ = ____ = √_____________ FM (1 - ω

2 )2 + 4 ε

2

0ω02

Fig. 5

An efficient mounting system use :

ωa high value of ___ low value of ω0 low value of λω0

a moderate ε0 - limited amplification in the resonant region.- minor effect in the attenuation region.

12

Transmissioncoefficient

Amplification Attenuation

ω___ = 1 λ > Resonance ωoamplitude at resonance which increases as εοdecreases.

ω___ = √2 λ < 1ωo

Attenuation (or vibration isolation) region.ωAs ___ = increases, λ decreases.ωo

εo has very little effect.

ω___ < √2, λ > 1ωo

Amplification region for any εo.

εο = 04

3

2

1

1

√2

5

εο = 0,1

εο = 0,2

ω___ωο

Attenuation as a function of natural frequency and frequency of excitation.(A theorical graph for a mounting system without damping)

13

Fig. 6

Frequency of excitation (rpm)

Susp

en

sio

n n

atur

al fr

eq

uen

cy (

Hz)

Sub

-tan

ge

nt

(mm

)

Frequency of excitation (Hz)

0.6

0.8

1

1.4

2

3

4

5

6

8

10

14

20

30

40

50

60

690

507

388

307

248

173

127

97.1

62.1

39.8

27.6

20.3

15.5

12.3

9.9

8.2

6.9

5.1

3.9

3.1

2.5

1.7

1.3

0.97

0.62

0.40

0.28

0.20

0.16

0.12

0.10

0.08

0.07

120

150

180

210

240

270

300

330

360

420

480

540

600

720

840

960

1,08

01,

200

1,50

0

1,80

0

2,10

0

2,40

02,

700

3,00

0

3,60

0

4,20

0

4,80

0

5,40

06,

000

7,20

0

8,40

0

9,60

0

10,8

0012

,000

REGION TO BE AVOIDED

VIBRATION ISOLATION

SEMI-RIGID SUSPENSIONS

Attenuatio

n (dB)

Attenuatio

n %

2 3 4 5 6 8 10 14 20 25 35 45 60 80 100 120 140160 200

99

98

97

95

90

8070

50

40

34

30

26

20

1410

6

• Practical considerationsa - Variable speed machinesIn practice, there may not be a single, well defined value for ω, as machines may have a variablespeed (variable ω).In these cases, the vibration isolation should be determined for the lowest speed.

b - Passing through resonanceAll machines must start and stop.Starting from rest to reach the speed ω (in the vibration isolation region), it is necessary to passthrough the resonant region.It is neccesary to ensure:- that the passage through resonance is as quick as possible;- that the suspension is sufficiently well damped so that the maximum force transmittedpresents no risk for the machine, the suspension or the seating.

c - Elastomeric suspensionsFor the elastomers currently used in flexible mounting systems, the intrinsic damping factor ε0lies between 0.02 and 0.1 (it can be as high as 0.2 with synthetics such as butyl rubber).- In the vibration isolation region, the formula for the transmission coefficient is simplified as, forthe values of ε0 for natural rubber, the term 4εο

2 is negligible by comparison with 1.

1λ = _____ for ε0 between 0.02 and 0.1

ω2-1

ω²0

1- At resonance λr = _____

12 ε0

λ = ___2 ε

For natural rubber, therefore, the amplification at resonance is between:

1 1______ = 5 and _______ = 25 2 x 0.1 2 x 0.02

a) Noise and vibrationNoise is a random vibration. It is formed by the combination of a number of uncorrelatedfundamental frequencies. Noise gives rise to sound.Airbone noise is usually treated separately from structure borne noise.Sound is associated with the disturbance of a medium (solid, liquid or gaseous). Thisdisturbance is in the form of a vibration of the molecules of the medium about their position ofequilibrium.

b) Improving acousticsAn elastic suspension affects only structure borne noise.This is a vibration of the building structure and a flexible mounting system breaks thetransmission close to the source. The resilience of the attachment reduces the forcestransmitted to the base and its vibrational energy.

14

structure borne noiseairbone noise

elastic suspension

false ceiling

Soundproofed control room

airbone noise

(using Traxiflex mountings)

Source of noise Adjacent room

structure bornenoise

Transmission from one roomto another

Example:Workshop with guillotine(shock and noise)

structureborne noise

As the radiation efficiency is unchanged, the improvement in terms of radiated power (acoustic)is the same as the improvement in terms of the force transmitted. The curve giving thevibrational attenuation in % may be translated into decibels.

100Attenuation in dB is 20 log _______ where E is the attenuation in % 100 - E (structure borne, not airbone noise).

The suspension of the machinery allows the adjacent room to be sound insulated and to bemade more quiet.The rigidity of the base supporting the suspended mass must always be taken into account. Asa rule, it is considered that unless the mountings are ten times more flexible than the base thechoice of suspension must be re-considered.PAULSTRA mountings may be caracterised at high frequencies.

III.2.3 - Shocks

• The nature of shocksFor a given period, the equipment is subjected to a brief, impulsory excitation. It is the mostsevere type of excitation that it may encounter during its lifetime.During the period that the excitation is applied, the speed of the equipment will vary: it issubject to acceleration and, therefore, to a force.A system that reacts slowly will not be subject to the same shock as a system that reacts quickly.It is necessary to compare the length of period that the stimulus is applied, against the naturalfrequency of the equipment.

• Types of shocksIn practice, there are two types of problems.• The equipment is subjected to shocks which are well defined by experiments, but are very

complex and not reproducible under laboratory conditions. It is, therefore, necessary todefine an equivalent shock.

• The equipment must resist shocks which are arbitrarily defined (e.g. meeting standards).A shock is defined by an excitation which varies with time: the acceleration, the speed or thedisplacement of the point where the excitation is applied. In some cases, it is better to definethe shock as the energy transferred to the equipment (e.g. vehicle impact).

• Protection against shocksThere are two principal cases to be considered:a) Limitation of the force transmitted to the equipment:This case often appears in the following form:The equipment, moving at a known speed, meets an obstacle. The force that it can withstandwithout damage is limited to a known value.A system of rubber parts, which could be the flexible mounting system of the equipment, isplaced between the equipment and the obstacle.These parts provide a constant stiffness Kz in the direction of the shock. If there is energy W tobe absorbed in the absence of damping:

1 2 WW = __ Kz s2 The maximum force FM = Kz s = ___ The maximum force is inversely

2 s proportional to the travel.

2WThe travel Z = √___ The travel is inversely proportional to the square root of the stiffness.

Kz

Note: Some systems do not have a constant stiffness, but a stiffness which increases rapidly (e.g.compression systems). It is clear that if the energy W is not absorbed before the stiffnessincreases, the maximum force will be much higher than predicted by this formula.

15

Example of measurements made on a special Radiaflexmounting.Elastomer: polychloroprene hardness 47Amplitude ± 0.01 mm about the position under static load

DY

NA

MIC

ST

IFFN

ESS

EXCITATION FREQUENCY

N/mm4,000

3,500

3,000

2,500

2,000

1,500

1,000

500

0 50 100 150 200 250 300 350 400 450 500

Hz

b) Limiting the acceleration of particular parts of the equipmentIn this case the shock must be described in terms of its potential to destroy. The efficiency ofthe protection system is measured by its ability to reduce this potential.A shock to the equipment can damage a component part if this part is induced to vibrate at anamplitude which is incompatible with its mechanical characteristics thus causing it to break.

A shock can be characterised by its action on a whole series of components.For the same shock, each component has its own specific response, which differs from onecomponent to the next.The shock spectrum is the graphical representation of the ratio of amplitude of vibration (Γ) ofthe components to the amplitude of the shock (Γ0) as function of the ratio of the duration of theshock τ to the natural frequency T of the elements.This is not a representation of the amplitude as a function of time, neither of the excitation norof the effect, but a convenient representation of the destructive power of a shock.The representation is not reversible.• It is not possible to recover the form of the shock from the spectrum.• Two different shocks may well produce the same spectrum.Take, for example, the case of shock with a semi sinusoidal acceleration.

Study of the spectrum shows that the performance of a mounting system is acceptable when itis possible to obtain a natural frequency T such as :

τ Γ__ < in which case the ratio __ is less than 1 and the component is protected.T Γο

If it is not possible, it is better to set up the flexible mounting system to avoid the region ofsignificant amplification for :

τ__ between 0.25 and 2.5T

This simple case shows the role of a flexible mounting system and the importance of knowingthe details (shock spectrum, amplitude as a function of time) and, above all, the duration of theshock.

• The role of dampingDamping can be useful in reducing rebounds and the amplitude of successive cycles ofoscillation. It is, however, important not to use just any type of damping as some can give riseto unfortunate reactions. Elastomers provide a compromise which allow the provision a highlevel of protection.

16

A piece of equipment must withstand a shock of Γ0 = 400 m/s² for a period τ = 8.75 x 10-3 s.

Natural frequencymass

τ__T

Γ__Γ0

Load on mounting points

Component A of the equipment40 Hz10 kg

8.75 - 10-3 x 40 = 0.35

1.25

400 x 1.25 x 10 = 5000 N

8.75 - 10-3 x 286 = 2.5

1.1

400 x 1.1 x 1 = 440 N

Component B of the equipment286 Hz

1 kg

Shock spectrum

1 2 3 4 5

A B

Γ__Τ

Γ__Γο

1.5

1

0.5

III.3.1 - Active isolation systemThis is a flexible mounting system designed to prevent a machine from transmitting itsvibrations to its seating or foundation.This is the theorical problem (with one degree of freedoom which was treated, by attenuatingthe vibration, in the preceding pages.The vibration isolation does not stop the machine from vibrating, but it reduces the transmissionof these vibrations.By comparison with a rigid suspension (which transmits the vibrations) the amplitude of themachine’s vibrations may be greater. The machine is, to an extent, freed from its fixed seating.This is the case for the automobile “floating engine” which, mounted on a flexible mountingsystem, no longer transmits its vibrations to the bodywork and the passengers due to increasedmobility under the bonnet (hood).If excessive movement cannot be tolerated, the only way to reduce it, without reducing theefficiency of the flexible mounting system, is to increase the suspended mass (ballasting).For a given excitation, the amplitude is inversely proportional to the mass.This is necessary for certain machines which produce particulary severe vibration : slow singlecylinder compressors, centrifuges, power hammers etc.These machines, are therefore, fixed rigidly to a chassis or heavy slabs and the whole assemblyis suspended.Increasing the suspended mass allows good vibration isolation with limited vibration of thesuspended assembly.It is worthwhile suspending complete assemblies rather than individual machines : generatingsets, motor/compressor units, motor/pump units.

• Important noteTwo points must always be borne in mind when designing equipment :• Firstly, that a high level of protection requires great flexibility which requires considerable

clearance between the equipment and its surrounding.• Secondly, that the equipment will oscillate and room must be allowed for the rebound in case

of shock. Travel limiters must be positioned so that they do not impede the operation of theflexible mounting system during the shocks allowed for in the design.

A flexible mounting system using rubber protects against shock by reducing the travel andmaximum force. It is necessary to allow enough clearance for the rebound.

III.2.4 - General caseTheoretical study above is based on a very simple case :movement with only one degree of freedom (vertical) with only one excitation (also vertical)aligned with both the centre of gravity of the suspended machine and the centre of elasticity ofthe mounting system.In general, things are not so simple. The machine can move in any of the degrees of freedom(rotation or linear movement). In theory, there are as many natural frequencies as there aredegrees of freedom.These natural frequencies are not independent but are “coupled”. If one of these is excited inone degree of freedom, it can, as a result of the coupling, give rise to vibrations at the samefrequency in other degrees of freedom.To analyse the whole behaviour, the stiffness in all directions needs to be taken into accountand not just the mass of the suspended body but also the moments of inertia so that rotationalbehaviour can be evaluated.In addition there may be not one but several forced vibrations, with variable frequenciesapplied to several different points, in various directions or about various axes.Even general cases can be very complex however symmetrical structures and mountingarrangements allow the use of the single degree of freedom analysis shown above. In othercases only an in-depth study allows an effective solution to be found. Our Technical Services arethere to help you to define it.

III.3 - VARIOUS TYPES OF FLEXIBLE MOUNTINGSYSTEMS

17

III.3.2 - Passive isolation systemThis is a flexible mounting system designed to protect a non-vibrating machine from thevibrations of its surroundings.The design of a flexible mounting system for attenuating vibration, as defined above, is stillvalid. With the correct flexible mounting system, the acceleration transmitted to the machine isvery small and as it is not subject to any other excitation it remains almost stationary.The vibration of the supporting structure is almost entirely absorbed by the flexible mountings.

III.3.3 - Semi-rigid mounting systemThis is a suspension where there is no vibration isolation for a given frequency ω

ω( __ < √2 )ω0

As shown above, such a mounting system should be of no interest as it leads to an amplificationof the vibration, not an attenuation. In practice, it can, however, give reasonable performance inthe following two cases.

• CouplingIn practice, there is not just one movement. For a mounting system, several movements arepossible. In fact, as we have seen (fig. 2), a machine may have six degrees of freedom. A properstudy of a mounting system will take into account the type of excitation acting on the machineand try to arrange that it does not vibrate in all directions. However, because of constraints onmounting points, the mountings may not always be put in ideal positions : if the machine issubject to an excitation in one direction, it may, therefore, move in several directions e.g. two.These two movements are said to be “coupled”.The natural frequencies in each direction are not identical. The coupling between the twomovements has the effect of lowering the lower natural frequency and raising the higher. Insteadof having one maximum (fig. 5), the response curve has two. It is essential the excitation doesnot fall on one or the other. As it may demand an impossibly high flexibility, it is not alwayspossible to make the coupled natural frequencies sufficiently low to put the frequency of theexcitation in the vibration isolation region. On the other hand, if the two natural frequencies areplaced on either side of the frequency of the excitation, a modest attenuation may be obtained.

• HarmonicsA vibration of frequency ω is rarely “pure”. Frequently it also includes “harmonics” ; i.e.vibrations at related frequencies 2 ω, 3 ω ... Even if it is not possible to provide vibrationalisolation of the fundamental ω, it may be possible to attenuate the harmonics. This may be moreimportant as the low frequencies are often inaudible and, in addition, correspond to very smallmechanical accelerations whereas the higher frequencies are a source of noise which can beeliminated by an appropriate vibration isolator.

III. 3.4 - External connections

So far, it has been assumed that the machine is only connected to its surrounding by its flexiblemounting system.In pratice, there will be other connections, such as :• Pipework (inlet, exhaust, cooling).• Electric cables, remote controls...It is necessary to ensure, or arrange, that these external connections are sufficiently flexiblewith respect to the relative movements.This precaution will avoid :• Damage to pipework.• Reduced vibration isolation by introducing additional rigidity.• Direct transmission, via these connections, of the vibrations which have been suppressed

elsewhere.As the flexible mountings attenuate the transmission of the vibrations the machine is free tomove, be sure to leave enough clearance in all directions to allow freedom of movement.

18

Information about... ...to determine the fundamental parametersof the flexible mounting system

...the MACHINE and...Centre of gravity Weight Load on each mountingNumber and position of mountingpoints (supplied or possible)

the DISTURBANCE...Frequency of disturbance Deflection of the mountings for the(or speed of rotation) required attenuation

Principle direction of Stiffness characteristics for thethe disturbing force mounting

When designing a flexible mounting system, it is essential to know, precisely the basiccharacteristics of the machine to be suspended.

It is extremely useful to have a drawing (even if it is schematic) which shows the position of thecentre of gravity and the mounting points provided.The drawing may also allow the evaluation of certain parameters which may be necessary andwhich are often unknown to either the manufacturers or the users (e.g. moments of inertia).

For passive isolation, it is necessary to obtain the maximum of information about the externalvibrations which may disturb the machine.In any case, for complex problems (oscillations in many degrees of freedom, multipleexcitation), it is advisable to consult our Technical Services.

For simple problems (one degree of freedom, or two degrees of freedom with the centre ofgravity close to the mounting plane) it is possible to design the suspension, as shown below,with a minimum of information about the machine and the disturbance.

- DESIGNING A FLEXIBLEMOUNTING SYSTEM

IV.1.1 - Ask the manufacturerIn most cases, the manufacturer of the machine should be able to supply the exact position ofthe centre of gravity as well as the weight.Consult the manufacturer.

IV.1.2 - Graphical method for finding the centre of gravity of an assemblyThis is suitable for assemblies of units for which the individual weights and centres of gravityare known.

Important notes :• Using a graphical method, it is important to represent dimensions using a well determined scale

and the weights by vertical lines whose lengths are proportional to their size (e.g. 1 cm for10 daN).

• If the centres of gravity considered in this section are not in the same vertical plane, theprocedures proposed here should be applied twice : for the front and for the side view withthe outlines corresponding to each view.

IV

IV.1 - DETERMINING THE CENTRE OF GRAVITY

19

Fig. 9Draw : AP’B = BPB Join P’A and P’B

BP’A = APAThe centre of gravity G lies at the intersec-tion of the lines P’A P’B and AB.Measure a and b.

• An assembly of two units

• An assembly of three or more units

Proceed, stage by stage, as described above using groups of two units or sub-assemblies withcentres of gravity and weight known or calculated.

IV.1.3 - Experimental determination of the centre of gravity of a unit

This method is used where the above two methods prove to be impossible or difficult (complexgeometry).

• Using a roller

For a given orientation (length, width and height) the centre of gravity is in the vertical planepassing through the axis of the roller when the machine is balanced. The centre of gravity is atthe intersection of the three planes thus determined.

• By “hanging”

Suspended from a cable, the centre of gravity is on the vertical dropped from the suspen-sionpoint. To find the exact centre of gravity, repeat the operation twice, using a different suspensionpoint each time.

20

Fig. 8

Two units of weights PA and PB respectivelywith centres of gravity A and B separated by L.

a b

L

PA

P’B

P’A

PB

A•A•• B• B

G

•

L L’

PB

PA

PC

P’A

PC

P’C

P’B

C•

A• A•• B

B• B

•

A• C

•C•

G

••G’

•G’

IV.1.4 - Analytical determination of the centre of gravity ofan assembly of several masses

An assembly of several masses m1, m2, ... mn is fixed in space.It is assumed that the coordinates, within an arbitrary Cartesian set, of each mass are known.

X1 X2 Xnm1 { Y1 m2 { Y2 mn{ Yn

Z1 Z2 Zn

The mass of the assembly M = m1 + m2 + ... + mn acts at the coordinates of the centre of gravityof the whole : x, y, z

m1 x1 + m2 x2 +...+ mn xnx = _________________________M

m1 y1 + m2 y2 +...+ mn yny = _________________________M

m1 z1 + m2 z2 +...+ mn znz = _________________________M

Important note : The coordinates of the centres of gravity may be negative and must be usedwith their sign.

IV.2.2 - Number and position of the mounting points are predeterminedIn this case, it may not be possible to have the same load on each mounting.

• Four mounting pointsA, B, C and D are the mounting points,G the centre of gravityP the total weight suspendedPA, PB, PC and PD are the loads on the mounting points A, B, C and D.

m2 l2 m1 l2PA = ___ . ___ . P PB = ___ . ___ . Pb a b a

m1 l1 m2 l1PC = ___ . ___ . P PD = ___ . ___ . Pb a b a

If PA, PB, PC and PD are significantly different, it is, theoretically, necessary to choose fourdifferent mountings which will give the same deflection under the various loads.

IV.2.1 - Number and position of the mounting points are not predeterminedIn this case, the number and position of the mountings are determined in such a way that theload on each mounting is the same for all mounting points.Taking, for example, a symmetrical machine with :

G : the centre of gravityP : the weight of the machineCalculate the position of 6 mounting points such that the loadon all the mounting points is P1

P1 l’1 + P1 l’2 = P1 l1Weight

from which l1 = l’1 + l’2 and the load per point = ______6

IV.2 - DETERMINING THE LOAD PER MOUNTING

21

Fig. 14

Fig. 13

+ A D +

+ B C +

G

I1 I2

m2

m1b

a

m1

y1

x1

z1

y

x

z

o

•

•

•

•

o o o

o o oG

l1 l’1

l’2

• More than four mounting points (fig. 15)In this case it is best if the assembly is symmetrical about avertical plane. This is assumed to be true in the following.To the left of G, there are 2n identical mountings.To the right of G, there are 2p identical mountings which are,possibly, different from the 2n mountings to the left.The problem is to set the difference between the left handand right hand mountings so that the deflection under load ofthe 2n + 2p mountings are all the same.Under these conditions, all the mountings to the left of G willbe supporting the same load Q and all those to the right willbe supporting the same load R.This will give :

Q (l1 + l2 + ... + ln) = (λ1 + λ2 + ... + λp)2 nQ + 2 pR = P

From which the mountings charge is :

λ1 + λ2 + λpQ = ________________________________________ . P

2 n (λ1 + λ2 + ... + λp) + 2 p (l1 + l2 + ... + ln)

l1 + l2 + lnR = ________________________________________ . P2 n (λ1 + λ2 + ... + λp) + 2 p (l1 + l2 + ... + ln)

If Q and R are not too different, the same size mountings maybe used but with different hardness elastomers.

Example (fig.16)Taking a symmetrical machine with an offset centre of gravityG and 6 mounting pointsn = 2 et p =1.which gives :

λQ = ______________ . P

4 λ + 2 (l1 + l2)

l1 + l2R = ______________ . P4 λ + 2 (l1 + l2)

IV.2.3 - Important notes

If a single size of mounting is used, but different hardness elastomers are choosen, there is ahigh risk that the mountings may be interchanged which may degrade the attenuation of thesuspension. The machine must be mounted with great care.There are, however, benefits from using identical mountings to build a suspension. If thepredetermined mounting points of the chassis do not allow a centered suspension, the solutionis to attach these to a false chassis, as rigid as possible, to which the desired number of identicalflexible mountings are attached in the positions required. If this false chassis is a slab ofconcrete (or inertia block) the suspended mass is increased which improves the quality of thesuspension.

IV.3.1 - Deflection and sub-tangentFig. 17 is a graphical representation of the derivation of the deflection and sub-tangent from theload/deflection curve.

IV.3 - DETERMINING THE DEFLECTION

22

If the machine weighs 500 daN and λ = 0.4 m ; l1 = 0.3 m ; l2 = 0.9 m, then Q = 50 daN and R =150 daN.

Fig. 16

Fig. 15

+

+

+ +

+ +

+

+ + +

+++

Q Q Q

G

G

R R

+ + + +

l1

l2

ln

λ1

λP

==

+Q +Q R+

+Q +Q R+G

l2

l1λ

= =

For most PAULSTRA mountings, the load/deflection curve is linear in the region of static loads(fig. 18) and, as a result, the sub-tangent and the deflection are identical.

The curve in fig. 17 is typical of EVIDGOM mountings.For these it is best to work at the point of inflection of the curve where the sub-tangent is thelargest possible and so the natural frequency is as low as possible.The deflection does not indicate the amplitude of the oscillations of the machine.

IV.3.2 - Operating regions

The region OM is the static load region. The deflection is approximately proportional to theload.

In the data sheets, the coordinates of the point M are given as the NOMINAL STATIC LOAD.

The region MP is the dynamic load region corresponding to normal, repeated shocks providedthat the rate and total deflection stay within normal limits.

In the region PZ, which corresponds to exceptional, accidental shocks, the curve rises rapidly.The stiffness increases progressively which has the effect of reducing the amplitude of themovement. Note that, because of the natural damping properties of the rubber, this increasealso depends on the speed of impact.

For a given static load, the deflection corresponds to the compression of the mounting underthat load, but the stiffness about the position under load is given by the sub-tangent (theprojection of the tangent onto the axis). This is the elasticity which determines the naturalfrequency of the mounting.

Fig. 17

Fig. 18

23

K 1ωo = C√ __ = √ __________ (C = constant)

M sub-tangent

staticload

load

load

actual deflection

sub-tangent

deflection

deflection

M

P

Z500

400

300

200

100

0 5 10 15 20

m

IV.3.3 - Attenuation - excitation frequencyAt a given excitation frequency ω, the attenuation depends on the natural frequency ωo and thusthe sub-tangent.With most rotating machines, the excitation frequency in cycles per minute can be taken to bethe rotation speed in rpm.As indicated on the chart (fig. 6, in § III.2.1.2) for a natural frequency in a known direction, theaim is to obtain the highest possible attenuation within the constraints of the load / deflectioncharacteristics of the mountings.The deflection selected must not be so high as to be detrimental to the stability of thesuspension.If the operating point is not within the vibration isolation zone, our Technical Services should beconsulted.

IV.3.4 - Static stiffness - Dynamic stiffness - Natural frequencyWhereas deflection and sub-tangent are given by the static stiffness curve of the mounting, it’snatural frequency is linked to the dynamic stiffness. In the case of elastomeric mountings, staticand dynamic stiffness can be different.The ratio between static and dynamic stiffness depends on the input amplitude, the frequencyand the type of elastomer. Under nominal load, the natural frequency is given for indication only.For a different load, the natural frequency could be found with the following formula :

nominal loadFp (actual load) = Fp (nominal load) x √______________

actual loadThis approximate is valid only if the actual load is in the linear part of the load/deflection curve(Fig. 17 & 18).

PAULSTRA mountings are classified according to their stiffness characteristicsTherefore, after having determined the number and deflection of the mountings as describedabove, the choice of mountings depends on the direction of the excitation.• Equi-frequency mountings : the flexibility is approximately the same vertically as horizontaly.• Mountings with high axial flexibility : high axial flexibility while supporting radial loads.• Mountings with high radial flexibility : high radial flexibility while supporting axial loads.• Low frequency mountings : high sub-tangent to achieve a very low natural frequency (a few

Hertz).

IV.4.1 - Suspension for a fan• Characteristics of the equipment :- Weight : 3000 daN.- Speed of rotation : 1200 rpm.- Fan mounted on a 2.5 x 3 m chassis with no constraint on the position of the fixing points.- Known centre of gravity.Number of mountings : after trials, using successive approximation to balance the moments ofinertia, 12 mountings points were selected.Load per mounting = 3000/12 = 250 daN.Natural frequency of the mounts (see chart).For an input frequency (or speed of rotation) of 1200 rpm, the maximum natural frequency is 14 Hz.A natural frequency of 7 Hz will achieve a reasonable attenuation of about 85%.Therefore, a mounting with a natural frequency of 7 Hz under 250 daN is required.As it is a rotating machine with no special characteristics, isometric mountings are selected.The selection guide gives a PAULSTRADYN mounting with a 8 mm deflection under a 260 daNload. According to the data sheet for PAULSTRADYN mountings, the PAULSTRADYN Ø 100hardness 60 has a deflection of 7.4 mm under a load of 240 daN, which is just right.

• Suspension characteristics :- 12 PAULSTRADYN 260. Mountings part number 533712.

Real load 250- Ratio ____________ = ____ = 0.96

Nominal load 260

- Attenuation ≈ 85%*.- Loaded height ≈ 32.5 mm*.

* These values are given by the Paulstradyn data sheet.

IV.4 - DESIGN EXAMPLES

24

IV.4.2 - Suspension of an engine/hydraulic pump unit mounted on an excavator

• Characteristics of the assembly :

- Weight : 1200 daN.- Speed of rotation : 1500 rpm.- Known centre of gravity.- 6 mountings points.

Load per mounting : 1200/6 = 200 daN.Deflection (see chart, fig. 5).For a frequency of 1500 rpm, a deflection of 3 mm will achieve an attenuation of approximately85 %.

The vibrations are predominantly vertical and the unit needs to be restrained laterally to copewith the movement of the excavator in operation. Mountings with dominant axial flexibility areselected.

The PAULSTRA mounting selection guide gives a STABIFLEX mounting with a deflection of5 mm for a load of 210 daN. According to the STABIFLEX mounting data sheet, the mountingrequired is a STABIFLEX 530622 hardness 45 with a square base.

• Suspension characteristics (under 1200 daN at 1500 rpm) :

- 6 STABIFLEX mountings reference 530622 hardness 45.- Deflection 4.7 mm.- Theoretical attenuation 85% (16 dB).

25

IV.4.3 - Suspension of a sieve

• Characteristics of the equipment :

- Weight : 400 daN.- Vibration frequency (horizontal) : 1200 cycles/mn or 20 Hz.- Known centre of gravity.- 6 mounting points.

Load per mounting : 400/6 = 66 daN.Deflection (see chart, fig. 5).For a frequency of 20 Hz, a deflection of 6 mm will achieve an attenuation of approximately 70%.

Mountings characteristics required :

1) mountings which will withstand the vertical load ;

2) mountings with a radial flexibility very much greater than the axial flexibility (mounting withdominant radial flexibility) ;

3) providing vibration isolation vertically (axially), which, taking account of requirement (2), willassure the horizontal vibration isolation.

The PAULSTRA mounting selection guide gives a RADIAFLEX cylindrical stud giving adeflection of 8 mm for a load of 70 daN.According to the RADIAFLEX mounting data sheet, the mounting required is a stud Ø 30 height30 mm with 2 mounting bolts (ref. 521312).The radial flexibility (shear) is considerably higher than axial flexibility (compression).

• Suspension characteristics :

- 6 RADIAFLEX cylindrical mounts with 2 screws reference 521312 (theoretical vibrationattenuation : 80% - 14 dB).

IV.4.4 - Suspension of a compressor unit

• Characteristics of the assembly :- Weight : 6000 daN.- Speed of rotation : 400 rpm.- Known centre of gravity.- 8 mounting points.- Load per mounting : 6000/8 = 750 daN.

• Deflection of mountings :For a frequency of 400 rpm, the minimum deflection to be within the vibration isolation regionis 12 mm. The PAULSTRA mounting selection guide gives a low frequency mounting which canprovide sufficiently large deflections (26 mm).According to the EVIDGOM mounting data sheet, the mounting required is an EVIDGOMmounting Ø 125, height 140 mm, reference 810784 which gives a deflection of 26 mm under aload of 800 daN.

• Suspension characteristics :- 8 EVIDGOM mountings reference 810784, Ø 125 mm, height 140 mm.- Deflection 26 mm.- Attenuation 37 % (4 dB).Note : as the low frequency mountings are tall, for some applications (sideways forces) it maybe necessary to provide lateral stops.

IV.4.5 - Suspension from a ceiling (false ceiling, ventilation units,pipework)

- For light loads of 15 to 135 kg per item our TRAXIFLEX mountings may be used directly.

Example of use :False ceiling - load per mounting 50 kg - frequency of excitation 25 Hz - mounting selected535611 hardness 45 - deflection under load 4 mm - theoretical vibration attenuation 77 % - 13 dB.

- For heavy loads, it is necessary to use a PAULSTRADYN, STABIFLEX or EVIDGOM mountingwith a safety fixing.

Example of use :1. Suspending a ventilation unit - weight 1000 daN - frequency 25 Hz - 4 PAULSTRADYN

mountings Ø 200 reference 533718 - natural frequency ≈ 7 Hz - theoretical vibration attenuation90 % - 20 dB.

2. Suspending a special 5 tonnes machine requiring accurate radial positioning - frequency20 Hz - 4 STABIFLEX mountings reference 530652 hardness 60 - deflection under load 8 mm- theoretical vibration attenuation 84 % - 16 dB.

3. Suspending a 20 tonnes tank subject to longitudinal expansion - frequency 15 Hz - 4EVIDGOM mountings reference 810733 hardness 60 - deflection under load 50 mm -theoretical vibration attenuation 95 % - 26 dB.

Mounting examples :

26

Fixing to ceiling

Using PAULSTRADYNUsing STABIFLEX

Using EVIDGOM

Suspendedequipment

PAULSTRAELASTOMER RANGE

29

LOW FREQUENCYHIGH RADIAL FLEXIBILITY

M O U N T I N G S S E L E C T I O NG U I D E

HIGH AXIAL FLEXIBILITY

RADIAFLEX PAULSTRADYN® STABIFLEX S.C.

Deflection - mm Deflection - mm* Deflection - mm Deflection - mm

Nominalstatic load

(daN)

* Range of parts using the same deflection (± 6.5 mm) to provide a natural frequency at 7 Hz.

30

* 0.743.5 * 0.883 0.510

2 - 4 *124 - 515

1.5 to 5.5 * 1.520725

4.5 - 6 * 1.2302.5 to 7350.6 to 8 3.5 0.840

453 to 10 * 2.5502.5 to 9 3 1.8 to 3.5607.5 - 8 * 4701.5 to 7 1.5 - 4803 to 8 3.590

* 3 - 3.51007 to 11 2 - 3120

4125* 3.5130

4.5 to 8.5 1.5 - 31504 to 9 * 3.5 - 4160

10 - 11 3 - 4190* 5200

52207 to 11 * 3 - 4 2 - 5250

4.52756 to 14 * 2 - 43009 to 15 3.5 - 4.53505 to 17 * 3.5 - 7 4.5 - 64007 to 19 8 3 - 6.5450

17 *5002.5 - 3.5 - 4.5550

7 to 10 * 560018 8 6.5700

*8006.5825

12 5 - 89007 - 8950

* 810008 3 - 5 - 9.51100

7.5 111250* 3 - 9.51400

1116008 8.51800

20008.521005230052600

500080009000

14000

4

HIGH SHEARFLEXIBILITY

HIGH AXIAL FLEXIBILITYLOW FREQUENCY

10

EVIDGOM® S.T.C. TRAXIFLEX SANDWICH

4

40.7

0.7 410

1.244

15 1.2

418 1.2

2

1.2

20 2

2

243

10 - 16 - 26

1 - 3

28

35

50 125060 660 5

675

122025303540455060708090

100120125130150160190200220250275300350400450500550600700800825900950

1000110012501400160018002000210023002600500080009000

14000200003000045000

Deflection - mm

31

M O U N T I N G S S E L E C T I O NG U I D E

8

Deflection - mmDeflection - mmDeflection - mm

Nominalstatic

load (daN)

S.T.C. ®S.C.STABIFLEXRADIAFLEX PAULSTRADYN®

In general :For fixed installations : RADIAFLEX. PAULSTRADYN and BECA.For mobile installations : STABIFLEX, S.C., S.T.C.Avoid using the mount with the rubber to metal bond area in tension.These mounts should only be used in compression or shear.

M O U N T I N G SA P P L I C A T I O N G U I D E

FANS

AIR CONDITIONING

PUMPS

COMPRESSORS

GEARBOXES

GENERATING SETS

IC ENGINES

PLANT CABS

VIBRATING TABLES/SCREENS

HOPPERS

MACHINE TOOLS

PRESSES, GUILLOTINES

GANTRIES

CIVIL ENGINEERING

CEILING,. PIPEWORK

LABORATORY EQUIPMENT

ELECTRICAL ENCLOSURE

TRANSFORMERS

FRAGMENTERS

SIEVES

HIGHRADIAL

FLEXIBILITY

LOWFREQUENCY

HIGH AXIAL FLEXIBILITY

32

APPLICATIONS

APPLICATIONS

FANS

AIR CONDITIONING

PUMPS

COMPRESSORS

GEARBOXES

GENERATING SETS

IC ENGINES

PLANT CABS

VIBRATING TABLES/SCREENS

HOPPERS

MACHINE TOOLS

PRESSES, GUILLOTINES

GANTRIES

CIVIL ENGINEERING

CEILINGS, PIPEWORK

LABORATORY EQUIPMENT

ELECTRICAL ENCLOSURE

TRANSFORMERS

FRAGMENTERS

SIEVES

LOWFREQUENCY

HIGH AXIAL FLEXIBILITYHIGH SHEARFLEXIBILITY

LOWFREQUENCY

33

M O U N T I N G SA P P L I C A T I O N G U I D E

Recommended application Admissible application

NIVOFIXTRAXIFLEXEVIDGOM® SANDWICH BECA

RADIAFLEX

• Metalwork: Mild steel, plated.• Natural rubber, bonded, cylindrically shaped.• Welded fixings: 5 styles (single sided threaded stud, single sided

threaded hole, double threaded stud, double threaded holes,combination fixing).

In Europe, we often use different screw standards than our frenchstandard.

To better satisfy this need, Paulstra has created a new range TRadiaflexEurope.

This range is available with the 4 usual welded fixings and with a newfixing: the threaded hole stop.

The design of the RADIAFLEX mount gives the following basiccharacteristics:

• Radial elasticity greater than axial elasticity.• The rubber works in:

- compression (axial).- shear (radial).- compression/shear according to the fixing method.

Advantages:

• Simple to fix.• Simple and economical.• Extensive range:

- 13 stud diameters.- Several heights for each diameter.- 5 methods of fixing.

Recommendations:• Operation in shear is very useful for vibration isolation provided that

the radial forces are not too great.

DESCRIPTION

CHARACTERISTICS

34

40

****

0.750.9

1.51.25

1.21.6

1210

66

M3M3

88

950950600500450

4535353535

M14

3030407080

557

1517

Ref.Deflectmm

Max.loaddaN

Deflectmm

Max.loaddaN

GmmØ CB

mm

1210

Ø Amm

15223040

253645

253545

2028354045

3040

521601521603521641

25400300250

58

11

303030

4.579

60 M10

25300250190

68

11

252525

4.579

521580521581521582

M1050

25450350300

81114

353535

6.51115

521705521710521711

70355070

M10

28 600 9 40 7 52165840 M12521803521840521841521842521843

779

1719

4040404040

80

100 471100

900750

81219

606060

71017

521908521909521910

405580

M16

521293521128521295

1.524

1.52.52.5

233.5

1210

810M5

101520

M4 10 20 1.53 2.5 1.5

2521650521651

1015

M6 16.5

4035303025

0.634.55.57

5554.54.5

12.53.54.54.5

521178521249521297521299521319

8.515202530

521292521294521296521298

1.5245

2.52.52.52

1.5345

20201515

12M510152025

521655521656521652521653

1.52.546

8888

1.52.527.5

80605050

2.5467.5

11111111

3589

90807060

25M8

101522253040

18M610152030

521308521310521312521314

12.5

30

513601511625511635511645

369

11

350400300250

25M1022253645

60

511525511535511545

69

11

300250190

25M10253545

50

40

511308511310511312511314

511265511270511251511275511280511285511290

511110511128511115511125

22.533.5

121110

8

10M51013.51520

12.5

16

3.5689

90807060

25M815223040

30

Ref.Compression

Bmm

1015

Deflectionmm

Max. loaddaN

Ø C

511150511151

232010M4

Gmm

Ø Amm

2345

20201515

10152025

8.515202530

M5 12511292511294511296511298511200511215511220511225511230

1.5455.57

M6 16.5

4035303025

20

25.510151922253040

511450511401511452511454511456

568

1011

160150120120120

25M10

2025354045

511157511161

710

12012020M830

40

Threaded hole fixing on request (except Ø 12.5).See current price list for availability of items.

DIMENSIONS AND COMPRESSIVE LOADS

*The shear characteristics are measured under Axial Load.**See VIBRACHOC elastomer range : references E3RP.

See Vibrachoc elastomer range :Threaded studs

35

SINGLE STUD FIXING DOUBLE STUDS FIXING

M8M8 20

80605550505050

23.54.55.568

10

1880605050

23.558

511158511155511159511160

10152030

M6

25450350300

91214

511735511750511770

70355070

M10

4535353535

1100950600500450

68

101719

513801511830511840511870511880

80

2530407080

M14

Compression Shear*

16

20

20

806050505050

1.52.545.57.5

10

888886.5

1.52.544.566

521340521341521251521342521343521344

25.5

25

160150120120120

468

1011

2020202020

35.56.57.59

521450521401521452521454521456

M10

20 150120

610

2020

5.57.5

521181521657M8

New RADIAFLEXreferences

Ø A Ø A

Ø CØ CG

B BG

Ø C

25.5

M6 4 35 4 51115420 15

M6 4605550

3,55,58

511164511162511163

25,5152030

M8 6 80 6 51115630 22

M10 8

150120120120

4.57

1011

20202020

520520520521520522520523

28354045

5.56.57.59

40

Hmm

Max.loaddaN

Deflect.mm

Max.loaddaN

Deflect.mm

Ref.Bmm

Ø Cmm

47

1100900750600

8121223

7101720

60606060

520100520101520102520103

100

405580

100

M16 14

70

801235

600500400

81719

404040

520044520045520046

407080

M147

1517

925450350300

7.51014

353535

520040520041520042

355070

M106.5

1115

825 300250

810

3030

52003852003960 36

45M10 7

9

25 250190

811

2525

52003552003650 35

45 M10 798

M8 20 150120

4.510

2020

520056520058

3040

5.57.56

M10 25

160150120120120

457.5

1011

2020202020

520029520030520031520032520033

402028354045

35.56.57.59

8

M8 25

90807060

34.57.59

11111111

520025520026520027520028

30

15223040

2.5467.5

6

M6 18605050

2.53.57.5

888

520052520055520057

152030

8.546

4

M8 20

50505050

3.557.5

10

8886

520021520022520023520024

22253040

44.566

6

M6 16.5

35303025

2.54.55.57

554.54.5

520015520016520017520018

20

15202530

2.554.54.5

4

14

1110900

1100600750600

812

8101923

6060

180140

6060

71010121720

520541520542520545520546520543520547

100

4055607580

100

M16

10 600 7 40 52055640 M12 7.5

12600500450

71719

404040

520534520535520536

407080

M147

1517

80

8 250190

710

2525

52052552052650 35

45 M10 79

8 300250

79

3030

52052852052960 36

45 M10 79

9450350300

79

14

353535

520530520531520532

70355070

M106.5

1115

30

25.5

M8 6807060

47.59

111111

520516520517520518

223040

467.5

M8 6 150120

4.510

2020

520552520553

3040

5.57.5

520010520011520012520013

1.5245

2.52.52.52

1.5345

M5 12 320201515

10152025

M6 4 5050

37.5

88

520554520555

2030

46

28 600 8 40 52005940 M12 710

Hmm

1.53

2.52.5

1.52M4 2.5 520550

5205511015

20202 1.5

32.5 1.5

2.5

Deflect.mm

Max.loaddaN

COMBINATION FIXING THREADED HOLE FIXING

36

Ø 16 mounts with threaded holes are fitted with RAPID nuts. Maximumtorque 1.8 m.N.

See current price list for availability of items. 1 kg � 1 daN* Shear characteristics are measured under axial load.

Gmm

Max.loaddaN

Deflect.mm

Compression Shear*

Ref.Ø Amm

Bmm

Ø Cmm

M4 10 520053520054

16

1015

Compression Shear*Ø Amm

M5 320201515

2.52.52.52

520500520501520502520503

16 10152025

1.5345

M6 4

35303025

2.54.55.57

554.54.5

520505520506520507520508

20

15202530

M8 6

50505050

34.57.5

10

8886

520511520512520513520514

22253040

1.52452.53.54.54.5

44.566

20

Max loaddaN

Hmm Deflect.

mm

CompressionRef.

Ø Amm

Bmm

M4 2,5 2020

23

51115251115316 10

15

Ø C

Ø A

H

B

New !

ONE THREADED HOLE

Ø C

Ø AØ A

Ø C

Ø C

HH

BG

B

Gmm

1016.5252020253545

1419284444607076

37

DIABOLO MOUNTS

ASSEMBLY

See current price list for availability of items. 1 kg � 1 daN* Shear characteristics’ are measured under axial load.

Ø Amm

12.520405757608095

M5M6

M10M8M8

M10M14M16

0.31.63.159.5

19.538.550

312304075

150300400

1.42.555589.59.5

0.532.57

12305570

1.254.556

109.58

521300521201521403521571521572521602521801521951

Bmm

Scm²Ø C

Compression Shear*

Ref.MaxLoaddaN

MaxLoaddaN

Deflec-tionmm

Deflec-tionmm

Compression

Compression/Shear Shear

The fixing holes for the Radiaflex mountsshould have a chamfer with a depth equalto the pitch of the thread.Ex. 521401: M10 x 150 chamfer = 1.5 mm

521951: M16 x 200 chamfer = 2 mm

Ø C

ØC

Ø A

P

F

S

P

GB

G

(cm²)

Scm²

Depthof

threadmm

Ø Amm

80 60 M14 15.5 38.5 250 5 70 8 521802

Bmm

Ø C

Compression Shear*

Ref.MaxLoaddaN

MaxLoaddaN

Deflec-tionmm

Deflec-tionmm

Also available with Ø 30 locators on each end, 3 mm thick allow M14 threaded holes:

PAULSTRADYN®

•Better than 90% isolation at 1.500 rpm(25 Hz).

•Constant height over wide load range.•Stabilised characteristics during Service Life.•Simple to fit.•400 hours protection against salt spray*.•Design.

* When mounted according to the recommendations given inthe catalogue.

New formula SILTECH- Low increase of stiffness with frequency- Low creep

ADVANTAGES

Finite element modeling

Natural frequency :• axial 7 Hz• radial 3 to 5.5 Hz

38

New !

3

Anti vibration isolation for static equipment :- rotating machinery such as fans, air-conditioning, pumps, compressors, generator sets.- pipework, ceilings, transformers, electrical enclosures.

APPLICATIONS

DIMENSIONS

39

* : Height, unloaded 40 mm, under load 32 mm (see Technical Characteristics).NL : Nominal static load with mounting under axial compression.

47

12401

2

2

2

2

80

100160200260

2

Designation

Paulstradyn 47

12

Paulstradyn 203050

Paulstradyn 70100130

Paulstradyn 160200260

Paulstradyn 325400500

Paulstradyn 640820

10501350

Ref.

533701533702533703

533704533705533706

533707533708533709

533710533711533712

533713533714533715

533716533717533718533719

Ø A

150

200

B* Ø C D E F G H Ø I J N

Dimensions (mm)Nominalload

NL (daN)

203050

70100130

325400500

640820

10501350

Fig.

60

40

40

40

40

40

40

M10

M12

M16

M6

M6

M8

124

182

240

52

76

100

10.2

12.2

14.2

6.2

6.2

8.2

16.2

20.2

24.2

6.2

8.2

12.2

2.5

2.5

2.5

4.5

5.5

152

214

280

64

90

122

104

154

204

44

64

84

68

116

159

12

32

48

10

10

20

6

6

12

Ø C

Ø I

Ø A

F

D

E G

HEG

J

B

N

J

N

B

Ø A

Ø I

Ø C

Fig. 1

Fig. 2

40

TECHNICAL CHARACTERISTICS

The vibration attenuation and height characteristics under nominal load are stabilised after onemonth under load at 20°C.

Common characteristics • Natural axial frequency 7 Hz, with nominal load.• Natural radial frequency 3 to 5.5 Hz.• Maximum displacement :

- axial : 12 mm.- radial : ± 10 mm.

Height under load

Temperature

Other characteristics*

Operating temperature : - 20°C to + 70°C.

• Good dynamic performance at high frequency.

• Withstands fatigue and shocks.

• Reduced creep.

* Detailed Technical Characteristics can be sent on request. Askus for details.

AL NL

= 0.8

AL NL

= 0.7

AL NL

= 0.9

AL NL

= 1

900 1500 2100 2700 3300 3900 4500 5100 5700

20

14

10

80

60

100

90

80

70

60

5010 20 30 40 50 60 70 80 90 100AL Actual load____ = Ratio _______________

NL Nominal load

Vibration attenuation Rotating speed (rpm)

Excitation frequency (Hz)

Att

en

uati

on

co

eff

icie

nt

(%)

Att

en

uati

on

(d

B)

Stabilised height vs load

AL/NL ratio (actual load/nominal load)

He

igh

t un

de

r lo

ad (

mm

)

Diameter K(mm) M6 M8 M10torqueN.m. 2 5 12

M12

20

Note : Do not paint the mountings after fitting.

Alternative mounting

Standard mounting

Recommended torque

① machine base or footdimensions > Ø M*

② supporting structure (floor)dimensions > base of mounting F x H* (referpage 39)

③ screw Ø C**

④ screw Ø K, a washer is required between the screwhead and the PAULSTRADYN*

⑤ screw Ø K, a washer is required between thescrew head and the PAULSTRADYN*

Note : * to ditribute the load and resist corrosion** nuts and screws grade 4.6 minimum.

41

MOUNTING

ON CONCRETE ON CHASSIS

Fig. 1

①

⑤

②

③ ④

25 M

ax

25 M

ax

Ø K

Ø M

Paulstradyn references

Dimensions (mm)

∅ KFig. 1

M5M5M6M8

M10M12

2740464799

127

14345070

118162

∅ L maxFig. 2

∅ M maxFig. 1

Référencecoupelle

(en option)

342919342356342733342734342353342354

533701, 533702, 533703533704, 533705, 533706533707, 533708, 533709533710, 533711, 533712533713, 533714, 533715

533716, 533717, 533718, 533719

Protective cap(optional - see table)

Ø L max

Mounting and cap references

Fig. 2

STABIFLEX

The STABIFLEX mounting comprises a conical rubber section bondedbetween inner and outer metal parts.

• Centre axis with threaded hole.• Square (4 holes) or diamond base (2 holes) with clearance hole.• Bonded natural rubber, anti-slip bead.• Cup to protect the rubber and distribute the load.

The design of the STABIFLEX mounting gives the following basiccharacteristics :

• Axial elasticity two or three times higher than radial elasticity.• The rubber works in shear/compression.• Progressive buffer against shocks or accidental overload.• Anti-slip (may be placed directly on the ground).

Advantages :• The machine may be placed with its mountings directly on the

ground.• Speed of fixing.• Easy movement of suspended machinery.• Rubber protected against harmful liquids.• Extensive range : 3 hardnesses of rubber for 5 existing types,

allowing the mounting to be optimised as a function of the load andforcing frequency.

• May be used with an anti-rebound washer.

Recommendations :• In order not to affect the performances of the mounting system, all

external connections must be flexible.• STABIFLEX mountings must be fitted so that the vibration input is in

the axial direction.(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency :6 to 11 Hz

42

DIMENSIONS

OPERATING CHARACTERISTICS

43

STABIFLEX - diamond base STABIFLEX - square base

* Part identified by the letter “R” (reinforced) See current price list for availability of items.

Ø E Ø E

B

F

F

D

D

D F

XX X’

X’

J

Ø A Ø A

Ø CØ C

B

J

Nominalstatic load

daN

Deflectionmm Reference Hardness

10 - 4215 - 6020 - 93

30 - 12540 - 16550 - 21065 - 260

3.533.543.553

530603530603530613530603530613530622530613

45604575604575

Nominalstatic load

daN

Deflectionmm Reference Hardness

65 - 27595 - 380

110 - 450175 - 700

250 - 1000325 - 1300450 - 1800

4.53.588888

530622530622530642530642530652530652530652

60754560456075

Type Reference Hardness Ø Amm

Bmm Ø C D

mmE

mmF

mmJ

mmWeight

g

Diamond base 530603530613

45.60.7545.60.75

6984

4151

M12M12

98115

911

114137

67

250450

Square base530622530642530652*

45.60.7545.60

45.60.75

100133133

527171

M12M16M16

90114114

111313

114144144

799

100023002700

ASSEMBLY

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

44

All our mountings are identified by conventional markings, either a paint spot or figuresindicating the hardness : grey = hardness 45, green = hardness 60, blue = hardness 75.

• Fixing with anti-rebound washer- The anti-rebound washer (not supplied) is fixed to the lower side of the centre axis.- In this case, do not forget to fit a spacer.

Spacer thickness required :

530603 h : 2 mm

530613 h : 4 mm

530622 h : 7 mm

530642 h : 14 mm

530652 h : 14 mm

• Standard fixing methods

h

STABIFIX®

STABIFIX® AR

The STABIFIX and STABIFIX AR (anti-rebound) are made of a rubberring bonded to two metal shelves. The anti-rebound function isintegrated with the STABIFIX AR version.

• Upper part with a smooth or a threaded hole (depending on version).• Diamond base (2 holes) or square base (4 holes) for the lower fixing

(2 holes).• Natural rubber bonded.

The design of STABIFIX gives the following basic characteristics:• Axial elasticity greater than radial elasticity.• The rubber works in compression/shear.• Progressive buffer against shocks or accidental overload.

Advantages:• Speed of fixing.• Easy movement of suspended machinery.• Rubber protected against harmful fluids.• Extensive range: 3 hardnesses of rubber allow the mounting to be

optimised as a function of the load and input frequency.

Recommendations:• In order not to affect the performances of the mounting system, all

external connections must be flexible.• STABIFIX and STABIFIX AR (anti-rebound) mountings must be fitted

so that the vibration input is in the axial direction.

(1) Natural frequencies with max/min loads, see: OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency:7 to 12 Hz

45

New !

DIMENSIONS

46

All our mountings are identified by conventional marking indicating the hardness.

530170530175Square base

Type Reference Hardness Ø Amm

Bmm Ø C D

mmE

mmF

mmJ

mm

Diamondbase

530181530184530185

45.6045.6045.60

82110101

354238

M10M16M16

110144144

111414

135175175

333

Gmm151515

7070

170170

Ø A1mm608781

118118

6363

24.5M20

150150

1313

184184

44

See current price list for availability of items.

Nominalstatic load

daN

Deflectionmm Reference Hardness

30 - 7570 - 160

110 - 220130 - 270180 - 380230 - 480

76.57.54.57.54

530181530181530184530185530184530185

456045456060

1000 - 20001000 - 2000

55

530170530175

7070

OPERATING CHARACTERISTICS

Ø A1

Ø A

Ø C

Ø A

Ø A1

Ø C

D

G E

Ø E

J B

B

B

J

J

F

DF

Ø A

Ø A1

Ø C

1 kg � 1 daN

STABIFIX ARanti-rebound

530181 - 530184 - 530185

TRIAXDYN

This anti-vibration mounting comprises two elastomers which areassembled into a casting and pre-loaded.

The mounting is designed to offer :• a large deflection (in axial),• different stiffness in three axis,• built-in stops to limit movement in all directions.

Note : The mount body can be modified to offer alternative interfacedimensions providing the internal interface with the elastomer ismaintained.

DESCRIPTION

47

This mounting has been designed to isolate engines or cabs in fixed ormobile applications with a high level of isolation and shock protection.Its compact design enables fail safe suspension of loads from 150 to280 kg.

It is suitable for :• Engine mounting.• Cab mounting.• Equipment mounting.

APPLICATIONS

New !

48

OPERATING CHARACTERISTICS AND DIMENSIONS

• Nominal load :- 150 to 280 kg.Possibility to extend, on request, the load rangeup to 350 kg.

• Different stiffness in three axis (for a hardness50) :- Axial on Z : 500 N/mm,- Radial on X (in direction of voids) : 350 N/mm,- Radial on Y (at 90 deg. to voids) : 500 N/mm.The geometry of the part provides low dynamicstiffness in the vertical dimension.

• Maximum deflection :- Axial : ± 10 mm, ± 4 g,- Radial : ± 6 mm, ± 2.5 g.

• Operating temperature :- up to + 80°C.

• Salt spray protection 400 h. for external alumi-nium metalwork.

Ø B

48.7

5

Ø 48

Ø A

28

9

133

Ø 1

08

15818

.5

C

12.5

X

Y

Z

66 u

nloa

ded

Mounting :

ReferenceØ Amm

Ø Bmm

Cmm

905233 12.4 94 128

ENGINE MOUNTINGS

This engine mounting is made of one conical elastomeric elementenclosed in a cast iron assembly. A built-in adjustable stop limits thevertical and lateral displacement during shock. This mount is availablein four different alternatives depending on the type of upper fixingneeded.It can be supplied with or without levelling system and with a threadedhole or a threaded stud.

This mount has been designed to suspend fixed or mobile generatorswhich require a high level of vibration isolation and shock protection.The load per mount varies from 600 kg to 2300 kg. This load range iscovered by 5 different variants (12 to 16) clearly identified by acoloured marking (see table).

This mount is available in four different alternatives depending on thetype of upper fixing needed:

• 905201: No levelling system - M24 x 3.00 threaded hole• 905202: Built-in levelling system - M24 x 3.00 threaded hole• 905203: No levelling system - M24 x 3.00 threaded stud• 905206: Built-in levelling system - M24 x 3.00 threaded stud

Note: Please refer to the drawings overleaf for more details on thedifferent types of mounts.(1) Natural frequencies with max/min loads, see: OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency:6 Hz

49

New !

50

OPERATING CHARACTERISTICS AND DIMENSIONS

Ø 18

190

230

133

unlo

aded

160

max

imum

hei

ght

12

140

180

R 20

M24 x 3.00

Ø 96

• Load range :Please refer to the chart below for the different variants and their colour marking.

• Deflection under static load :8 to 10 mm which gives a natural frequen-cy around 6 Hz.

• Maximum displacement :Vertical (Axial) : ± 6 mm.Lateral (Radial) : ± 5 mm.

• Ultimate load :Vertical (Axial) : ± 4 g.Lateral (Radial) : ± 3 g.

• Operating temperatures :- 10°C up to + 70°C.

• Unit weight :11.5 to 12.8 kg (depending on the variant).

Load range Variant Color

600 - 850 kg850 - 1150 kg

1100 - 1450 kg1400 - 1900 kg1700 - 2300 kg

1213141516

WhiteYellowGreenBlue

Purple

Reference 905202

Ref. 905201 Ref. 905202 Ref. 905203 Ref. 905206

ASSEMBLY

The installation of these mounts and the adjustments of their limit stops once loaded aredetailed in an assembly procedure supplied with the mounts.

S.C. MOUNTING

The S.C. mounting comprises an annular section bonded between theinner tube and outer housing.The outer housing has a mounting flange (4 different types).

The design of the S.C. mounting gives the following basic characte-ristics :

• Axial elasticity four times higher than radial elasticity.• The rubber works in shear.• Progressive buffer against shocks or accidental overload, provided

that a large metal washer is used to bear against the rubber dome.• Can be used as a fail safe assembly when fitted as in figure 1.

Advantages :• Extensive range : 3 hardnesses of rubber for 20 existing types,

allowing the mounting to be optimised as a function of the load andexciting frequency.

Recommendations :• In order not to affect the performance of the mounting system, all

external connections must be flexible.• S.C. mountings must be fitted so that the vibration input is in the axial

direction.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency :6 to 30 Hz

51

Reference

With fixing holes Without fixing holes

Ø Amm

202637.537.549.149.155.755.757.26566.5767687.586

118118118170170

6.28

12.112.112.212.218.218.218.220.220.222.222.240.240.260.260.260.28080

3.25.2----8.28.2----

10.58.58.58.58.58.5

10.510.510.510.512.212.2

312.51824203127393929474249476336669695

113

112840514760557070759390

110100120

98140170167185

1926----6969----867895

100100114104145145145204204

25364848727270709090

107112112127120164164164230230

412

88

12121018181818181820202222223030

840

110130190290370480500560780880960

1300150022003000380071007700

711.51818181819191928282828.533334646465353

11.5222233333333344455

Bmm

Ø Cmm

Dmm

Emm

Fmm

Gmm

Hmm

Jmm

Kmm

WeightgTYPE

S.C. 000S.C. 00S.C. 01S.C. 02S.C. 10S.C. 11S.C. 20S.C. 21S.C. 21S.C 30S.C. 31S.C. 40S.C. 41S.C. 50S.C. 51

S.C. 70 red.S.C. 70S.C. 71S.C. 80S.C. 81

531201531301

----

531216531611

----

531240531259531261531714531327531939531947531933531932531931531940531941

Fig. cFig. c

----

Fig. dFig. d

----

Fig. dFig. bFig. dFig. dFig. dFig. dFig. bFig. bFig. bFig. bFig. bFig. b

----

531401531402

----

531701531702

------------------------

----

Fig. aFig. a

----

Fig. aFig. a

------------------------

See current price list for availability of items.

DIMENSIONS

52

Fig. a Fig. b Fig. c Fig. d

Ø C

HG J

B

Ø A

K

Ø EØ E D

F KK

D

F

F

E

K

D

F

Ø C

HG J

B

Ø A

Ø C Ø C

H H

G GJ J

B B

Ø A Ø A

F

OPERATING CHARACTERISTICS

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

53

NominalstaticloaddaN

Deflect.mm Reference Hard.

35-15035-15040-17545-18045-19045-19055-22560-24060-25060-25060-25060-25075-30080-32080-32585-35090-36095-380

100-400105-420

1.53523353.5225524.54.53.54.534.52

531611531701531259531701531240531702531714531259531240531702531261531327531259531714531939531261531327531714531947531261

4560754560754560454575604560457575604545

7560457560604560757545457560456060754575

NominalstaticloaddaN

Deflect.mm Reference Hard.

1-62-8

2-105-207-30

10-4010-5015-6515-6515-7020-8020-8520-85

25-10025-10025-11030-12030-12030-13530-135

10.80.51.51.20.82.51.82.541.51.8433.51.5233.53.5

531201531201531201531301531301531301531401531401531402531216531401531402531611531216531701531402531216531611531240531702

NominalstaticloaddaN

Deflect.mm Reference Hard.

110-440110-450110-450135-550135-550150-600165-670175-700210-850225-900275-1100275-1100310-1250350-1400400-1600450-1800525-2100575-2300650-2600

3.536.52.53.552.56.56.5535

113

118.58.555

531939531327531933531939531947531933531947531932531931531932531932531931531940531931531941531940531941531940531941

60754575606075454560756045754560607575

1 kg � 1 daN

ASSEMBLY

54

Fig. 1 - Fixing between theequipment and a metallic chassis(failsafe in mobile applications).

Fig. 4

Fig. 2 - Fixing between twobrackets onto a vertical surface(non failsafe).

Fig. 6 - Two mountings fixed face toface. Provides twice the deflectionunder the same load.

Fig. 3 - Fixing between the equip-ment and concrete (using locatingrings).

• Mounting in tandem

• Standard fixing

• Reversed fixing

Fig. 5 - Fixing between inertia baseand foundation. The inertia baseincreases the suspended mass andthus reduces the amplitudes of thevibrations as well as lowering thenatural frequency.

staticchassis

staticchassis

Load

Load

EVIDGOM®

The EVIDGOM mounting is formed from two thick conical membranes,joined at their bases to create a highly elastic mounting.There are three variations :

• All rubber EVIDGOM.• EVIDGOM with bonded fixing.• EVIDGOM with a diamond or square mounting plate (fixing plate

supplied as a separate kit).

The design of the EVIDGOM mounting gives the following basiccharacteristics :

• A very high axial elasticity.• Very low natural frequency (a few Hertz).• Progressive buffer against shocks or accidental overload.

Advantages :• As the load/deflection curve has a point of inflection, a suspension

may be designed to have a sub-tangent greater than the staticdeflection.

• The elastomer used provides intrinsic damping with a correspondingability to absorb energy which gives appreciable advantages overmetallic springs.

Recommendations :• The selection of a low natural frequency (large deflection) must not be

allowed to endanger the stability of the suspension (tall equipment).• In certain cases (use under maximum load) the use of side stops is

recommended.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency :2.5 to 7 Hz

55

Evidgomreference

Dmm

Fig.

810780810766810768810769810773810784810779810770810775810776

98/102124/128124/128178/182178/182178/182178/182178/182

170170

Emm

8.210.210.210.210.210.210.210.210.510.5

Fmm

117158158214214214214214200200

Gmm

65110110150150150150150

--

Hmm

5556666688

337566337567337567337568337568337568337568337568337569337569

aaaaaaaabb

Fixingpack

reference

DIMENSIONS

56

Fig. 1 Fig. 2 Fig. 3

PP

BB B

Ø T3 x Ø TØ W

Ø AØ A

Ø A

Ø C 1

Ø CØ C 1

C 3 Ø C2Ø C2

Ø W

Lower fixing plate

Fig. bFig. a

D

G D F

E

D

H

Ø EF

See current price list for availability of items

Ø Amm

Bmm All rubber Fig. With

fixings Fig.Ø C

Ø C1mm

Ø C2mm

Ø C3mm

Ø Wmm Ø T

Pmm

344050608595

108120140125140140155188250350

25557040709090

110120140

9056

150180230290

810002810003810005

810006810008810009810012810013810014810019810020810015810016

--

111

1111111111--

810780810766810768810769

810773810784810779810770810775810776810733810736

2222

22222233

M10M16M16M16

M16M16M16M16M16M24

--

81414

202020202525283025407085

8141425303030304030123030407085

25303034

352528303040

40606070

707070709090

150196

M6M8M8

M10

M10M10M10M10M14M14

6 X M248 X M24

688

10

1010101014144040

Evidgom reference

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

57

OPERATING CHARACTERISTICS

Nominalstatic load

daN

Deflect.± 15 %

mm

Ø A mmunder

nominalcharge

HeightB

mmReference

5-1510-4020-8015-60

25-10035-150

100-400100-390150-600

51114101518202324

40506380

105124136134175

25558040709090

110120

810002810003810005810780810766810768810769810012810773

Nominalstatic load

daN

Deflect.± 15 %

mm

Ø A mmunder

nominalcharge

HeightB

mmReference

200-800200-800200-800

325-1300500-2000

1250-50002000-80002250-9000

3500-14000

261610303550506060

170175166175240345345500500

1409056

150180230230290290

810784810779810770810775810776

810733∆60810733∆75810736∆60810736∆75

See current price list for availability of items.

S.T.C.

The S.T.C. mounting comprises a rubber ring bonded to a central tube.

• Inner tube : mild steel.• Bonded rubber in the form of a ring at the top with a collar below

which is used for fixing.

The design of the S.T.C. mounting gives the following basiccharacteristics :

• The rubber works in compression.• Anti-rebound.• Can be used as safety mounting.

Advantages :

• Simple to fix.• Simple and economical.• Extensive range of loads.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency :10 to 25 Hz

58

DIMENSIONS

OPERATING CHARACTERISTICS

ASSEMBLY

59

Reference Ø Amm

Bmm

Ø Cmm

Ø Dmm

Emm

Ø Fmm

Gmm

539887539190539886539191

* 539920539951

20.631.534.341.13856.6

17.525.43544.52350.8

101313161620

27.744.550.863.56495

5.610.413.515.71625.4

20.631.534.341.138.556

81016191920

* This S.T.C. is mounted in pairs : see Fig. 2. See current price list for availability of items.

Reference HardnessNominal

static loaddaN

Deflectionmm

539887

539190

539886

4560

4560

6075

8-3510-50

15-7525-100

35-15080-330

0.70.7

1.21.2

1.21.2

Reference HardnessNominal

static loaddaN

Deflectionmm

539191

539920

539951

6075

4575

4565

60-250125-500

100-400250-1000

175-700250-1000

22

21

33

Fig. 1 Fig. 2 (For 539920)

Ø D

Ø F

Ø C

Ø A

B

G

E

STOPS

There are several types of stops :

• Cylindrical or DIABOLO stops.• Conical progressive stops.• LEVAFLEX progressive stops with central cavity.• EVIDGOM stops.

The design of the PAULSTRA elastic stops gives the following basiccharacteristics :

• Highly deformable allowing high energies to be absorbed.• Progressive absorption of energy due to the carefully designed

shape.

Advantages :• By comparison with rigid stops, PAULSTRA elastic stops are quiet and

avoid hammering and deterioration of equipment.

Recommendations :• The stops must be fitted so that, on impact, the axis of the stop is

perpendicular to the contact surface.• On impact, the external diameter of the stop increases : this must be

allowed for when fixing.

DESCRIPTION

OPERATION

60

See : Supports andBump stops

Cylindrical stop Conical progressive LEVAFLEX progressive EVIDGOM stopstop stop

80

2530407080

M14

1100950600500450

68

101719

33.0038.0030.0042.5043.00

513801511830511840511870511880

4535353535

1 -

60253645

M10400300250

69

11

12.0013.5013.70

511625511635511645

25 1 -

70355070

M10450350300

91214

20.0021.0021.00

511735511750511770

25 1 -

50253545

M10300250190

69

11

9.0011.2010.00

511525511535511545

25 1 -

30

402025354045

M10

160150120120120

568

1011

4.004.504.806.006.60

511450511401511452511454511456

25 1 -

15223040

M8

90807060

3.5689

1.502.402.802.70

511308511310511312511314

25 1 -

10151922253040

M8 20

80605550505050

23.54.55.568

10

0.801.001.201.301.502.002.50

511265511270511251511275511280511285511290

1 -

22 M8 80 6 2.40 511156- 2 6

25.5

ReferenceGmm

Ø Amm

Bmm Ø C

ChargemaxidaN

Deflect.mm

EnergyJoulesFig. H

mm

4.606.00

511157511161

120120

710

3040 M8 20 1 -

354

18181818

---

10152030152030

M6

Repetitive shocks

Deflect.mm

1

2

Wghtg

Deflect.mmReference

Exceptionalshock

Energyjoules

Max.staticloaddaN

ReactiondaN

8.515202530

M6 16.5

4035303025

0.300.700.700.800.80

1.5455.57

511200511215511220511225511230

-

1111222

80605050605550

0.801.001.202.001.001.202.00

23.5583.55.58

----444

15 M6 - 0.704 511154

Fig.

10151015

M4 -1122

202323

0.200.300.200.30

511150511151511152511153

--

2.52.5

Hmm

DIMENSIONS AND OPERATING CHARACTERISTICS

61

CYLINDRICAL STOPS

CONICAL PROGRESSIVE STOPS

See current price list for availability of items.

See current price list for availability of items.

See current price list for availability of items.

DIABOLO STOPS

∅ Amm

Bmm Ø C

Max.loaddaN

Deflectmm

EnergyJoules Reference

12.5

16

20

25.5

1013.51520

10152025

M5

M5

Gmm

10

12

1

1

121110

8

20201515

22.533.5

0.120.130.160.14

0.200.300.300.30

2345

511110511128511115511125

511292511294511296511298

511158511155511159511160511164511162511163

Ø Amm

Bmm Ø C G

mmEnergyJoulesReference

25.530305050505050506060727295

202513.52520253525152562253045

1930305050646458584040585880

M8M8M6

M10M8

M10M8

M10M8

M10M14M10M12M16

366

30304040373727275050

120

815152525323228281818262637

100140140340340370370400400550550550550

1100

918189090

120120110110

7070

150150350

Wghtg

2037308575

150150130120140200290300750

512251512307512301512515512501512516512502512517512503512608512601512700512721512951

Ø Amm

Bmm

Ø CG

mm

Max.instant.

loaddaN

Deflect.mm

2020253035

5757608095

4242576570

M8M8

M10M14M16

100200350800

1000

1012151618

4075

150300400

45.589.59.5

EnergyJoules

126

1520

6080

190500790

511571511572511601511801511951

Scm²

59.5

19.538.550

G

Ø CØ A

B

G

CA

BG

Ø C

Ø A

S (cm²)B

-

-

Ø C

Ø A

H

B

Fig. 1 Fig. 2 New rangeRADIAFLEX

Bmm

Ø Cmm

DmmReference

6990

106132168

Ø Emm

8.58.5

111113

Ø Gmm2030404560

Hmm

5668

10

85110130160200

8.512.5192328

Weightg600

1200200030007000

514085514110514130514160514200

Amm

85110130160200

LEVAFLEX PROGRESSIVE STOPS

EVIDGOM STOPS

EnergyJoules

170280330550600650

1050120013002200

Correspondingdeflection

mm40405050656075907085

ReactiondaN

Exceptionalshock

energyJoules

1200170018003400280030004500400060007800

500850

10001500180019003000360039006600

Referencehardness

514085/60514085/75514110/60514110/75514130/60514130/75514160/60514200/60514160/75514200/75

Repetive shocks

EnergyJoules

31100110180350360400300600

1050250071009500

130001750021000290004100050000

Correspondingdeflection

mm3050456775658570759090

150200130175200250200250

ReactiondaN

Exceptionalshock

energyJoules

190580600750

125014001500

900162523755500

110009500

180001900025000350007000055000

95300330540

105011001200

------------------------

Referencehardness

810644810645810666810642810653810655810669810784810775810776

810733/60810732/60810731/60810732/75810731/75810735/60810734/60810735/75810734/75

Repetive shocks

62

Stopreference

810642810644810645810653810655810666810669810731810732810733840734810735810775810776810784

810022810004810035810023810025810046810029

----------

810015810016810014

Fig.

112112233333111

Bmm Ø C Ø C1

mmØ C2mm

Ø Dmm

Ø Aunder load

mm

11472

100140142

98155360380370445500202256168

1205593

130132

90150400315230500395150180140

M16M10M16M16M16M16M16

6 X M246 X M246 X M248 X M248 X M24

M16M24M16

All rubberEvidgomreference

Ø Amm

855566

100110

76110250250250350350155188125

201420202020207070708585254030

301414303014307070708585403025

--------------

150150150196196------

NOTE: The values are given for test conditions with an impact speed of 1 m/s. Consult us for speeds that are much higher.

See current price list for availability of items.

Fig. 3

A

Ø C

Ø D

C 1

B

C 2

D

A

DH

BA

E

C

G

Fig. 2Fig. 1

B B

A A

C 2C 2

CC

1 kg � 1 daN

1 kg � 1 daN

63

DEFLECTION CURVES AND ENERGY VALUES FOR PROGRESSIVE,LEVAFLEX AND EVIDGOM STOPS (Pages 61and 62)

64

NIVOFIX®

The NIVOFIX mounting is an adjustable equipment foot comprising acircular disc bonded to a protected elastomer base. An adjustementscrew is fitted into the assembly.

The elastomer base has anti-slip ridges.

The design of the NIVOFIX mounting gives the following basiccharacteristics :

• Accurate adjustment of the mounting to correct the equipment’sseating (adjustment screw, correction of altitude).

• Absorbs high frequency vibrations.• Corrosion resistant (nitrile elastomer, protective shroud, galvanised

metallic parts).• Anti-slip sole (no need to fix).

Advantages :• Speed of fixing.• Simple removal of the equipment.• No shimming.

DESCRIPTION

OPERATION

See Vibrachocmetallic range :

V43 - V44 - V45 - V46

65

Studlenght

mm120200250300300

DIMENSIONS

OPERATING CHARACTERISTICS

APPLICATIONS

66

See current price list for availability of items.

ReferenceStainless

steel

ReferenceSteel

Amm B maxi = B mini + adjustment

B mmØ C

mini maxi

G mm Weightg

530815530825530835

530810530820530830530840530850

6588

133200260

31.546587083

26.533465865

513121218

M12M16M20M24M24

105114130145158

110127142157176

280690

18205250

10000

Reference

530810530815530820530825

Nominalstatic load

min - max in daN100 - 600100 - 600

325 - 1300325 - 1300

Deflectionmm

1 - 3.51 - 3.52 - 42 - 4

Reference

530830530835530840530850

Nominalstatic load

min - max in daN

Deflectionmm

2 - 42 - 4

1.5 - 32 - 4

650 - 2600650 - 2600

1500 - 60003000 - 12000

NIVOFIX mountings are used for all equipment requiring height adjustment.

Equipment already using NIVOFIX mountings:

• Vertical mill • Plane • Packaging machine• Mortiser • Horizontal mill • Test equipment• Multichuck drill • Lathe • Printing press• Sheet metal bender • Office equipment • Gear cutter• Polisher - accounting • Textile machinery• Press - computing

Ø C

G m

ax.

G m

in.

B m

ax.

B m

in.

A

1 kg � 1 daN

MINIFIX

The MINIFIX mounting comprises an elastomer pad with an anti-slipridged surface and a threaded stud allowing accurate heightadjustment of equipment.Made in two hardnesses (50 and 80 Sh) the MINIFIX mounting isperfectly suited to a variety of applications and is delivered completewith fixing nuts and washers. MINIFIX mounting nuts and screws aremade of steel or stainless steel.

Simple and economic, MINIFIX mountings are particularly suitable forthe installation of equipment such as:

• Electrical or electronic enclosures.• Packaging equipment.• Test and measuring equipment.• Equipment for the food industry.• Laboratory equipment.• Household appliances.

DESCRIPTION

APPLICATIONS

67

New rangeMINIFIX

Hardness ColourReferenceStainl. steel

ReferenceSteel

Load rangedaN

- 530801 50 SBR80 Nitrile

greyblack

Ø Amm

32

Bmm

15

Cmm

38

D

M8stud

5 - 3015 - 70

- 530802* 50 SBR80 Nitrile

greyblack 46 15 - M10

nut10 - 80

25 - 200

530806 530805 50 SBR80 Nitrile

greyblack 46 15 38 M10

stud10 - 40

25 - 100

- 530807 50 SBR80 Nitrile

greyblack 70 25.5 55.5 M12

stud50 - 120

100 - 350

CHARACTERISTICS

* Threaded centre hole. 1 kg � 1 daNSee current price list for availability of items.

D

Ø A

BC

TRAXIFLEX

The TRAXIFLEX mounting comprises two metallic U armatures joinedby two bonded rubber blocks.It is available in two versions : male/female and female/female.

The design of the TRAXIFLEX mounting gives the following basiccharacteristics :

• Rubber works in compression-shear.• The same deflection under nominal load for all types.• Positive safety in case of elastomer failure.

Advantages :• Economic solution for suppressing structure borne noise.• Several fixing methods.• High resistance to atmospheric exposure :

- galvanised armatures- chloroprene elastomer.

• Upper metallic part is shaped to simplify orientation while fixing.• Two hardnesses of elastomer to extend the choice of mounting as a

function of load.• Filtration of vibration and the attenuation of the consequent noise.• Allows movement due to thermal expansion.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency :8 to 10 Hz

See Vibrachocmetallic range :VE101 - VE111VE112 - VE113

68

Reference

2 nuts

--------

535621535621535622535622

Deflectionmm Hardness1 screw -

1 nut

DIMENSIONS

OPERATING CHARACTERISTICS

ASSEMBLY

69

RecommendedloaddaN

4-184-187-307-30

10-5220-8020-92

30-136

444444444

535600535603535600

53560361**535611535611535612535612

4545606045604560

When fixing, ensure that all the TRAXIFLEX mountings are supporting the same load. It isnecessary to ensure that they are all the same distance from the fixing surface (ceiling, girder,plank...).TRAXIFLEX mountings can be used to suspend pipework: the whole assembly being fixed tothe ceiling.

• Suspending hot air ducts.• Suspending a fan unit and distribution ducts.• Suspending a hot air generator with continuous airflow.• Suspending an integral cased air conditioner.

1 kg � 1 daN

TRAXIFLEX mountings have been subjected to acoustic trials at the Centre Expérimental de Rechercheset d'Études du Bâtiment et des Travaux Publics which has given the P.V nr. 554.6.078.Note: For important loads, refer to solutions given page 30.** Elastomer resistant to fire M1(Suffix 11).

See current price list for availability of items.* Mountings ref. 535600 are fitted with a screw which can accept "ATLAS" collars.** The part 53560361 also exists with a longer stud, H = 17 mm in an elastomer resistant to fire M1(suffix 11).

Type

TR 12-30TR 12-30TR 12-30TR 40-80

TR 100-250

------

535621535622

535600*53560361**535603535611535612

Reference1 screw - 1 nut 2 nuts

Hard-ness

Amm

Bmm

Ø CG

mmH

mm

45-606045

45-6045-60

4747475574

3838384750

M7 x 1.50M6 x 1.00M6 x 1.00M8 x 1.25

M12 x 1.75

1616163040

717171317

B

H

Ø C

A G

BATRA RING

The BATRA ring comprises a rubber ring bonded to two metallicwashers one with a circular groove, the other with a mating circularridge which allows BATRA rings to be mounted one on top of another.

The design of the BATRA ring gives the following basic characteristics :

• Behaviour identical to that of a metallic spring plus damper.• Robustness :

- well behaved under shock.- removal of the risks of suspension collapse.

• Flexibility easily tailored by stacking BATRA rings.• Transverse creep limited by the two bonded armatures.

BATRA rings may be used :

• For making suspensions that are very flexible vertically and alsodamped by the natural properties of the rubber (road and railvehicles).

• For making very effective anti-shock buffers (wagons, cars, gantries).For special applications, where the quantities would justify custommanufacture, it is possible to supply Special BATRA rings either withonly one bonded lower armature or “all rubber”.For special cases of shock, there are Special BATRA rings withoverlapping, non-bonded, armatures.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

APPLICATIONS

(1) Natural frequency :7 to 22 Hz

70

45220300415540890750980

13601680151026004400

508086

100115140146146170170185250250

Ø Amm

541050541083541082541100541112541145541146541144541175541174541185541249541250

Reference

112727.528.5303520353550405059

1441.53232505555556060957070

3261656585

100.5100.5100.5115115140160160

4455

101010101010101010

5677

101010101010101010

2.5344555555555

1.5322333333333

Bmm

Ø Cmm

Gmm

Hmm

Jmm

R1mm

R2mm

Weightg

Staticcompression

Dynamiccompression

NominalloaddaN

Deflectionmm

LoaddaN

Deflectmm (1)

Ø Amaxi

Reference

50-20090-360

125-500175-700210-850

325-1300375-1500

0.833333.53

600110015002100250040004500

3.577779.57

5790

100115130150158

541050541083541082541100541112541145541144

Staticcompression

Dynamiccompression

NominalloaddaN

Deflectionmm

LoaddaN

Deflectmm (1)

Ø Amaxi

Reference

475-1900500-2000500-2000500-2000

1125-45001125-4500

1.135.34.54.55.5

5700600060006000

1350013500

2.59.5

14121213

158190190205282282

541146541175541174541185541249541250

DIMENSIONS

OPERATING CHARACTERISTICS

ASSEMBLY

The rings are centred using the grooves and ridges. To avoid play under no-load conditions, thestack should be pre-compressed by 3 to 10% of its height. It is also necessary to leave sufficientroom around the stack for the sideways expansion under load.

71

See current price list for availability of items.

(1) The instantaneous deflection indicated in this table is approximate as it depends on the impact speed. 1 kg � 1 daNIt is possible to use a metallic cushion for this application.

Ø A

G

Ø C R2 R2R1

B

H

JJ

BECA

The BECA mounting comprises one piece elastomer bonded to a topand bottom plate.• Top plate: smooth or threaded (welded nut) hole.• Bottom plate: Fixing lugs or direct bearing on the ground.• Bonded rubber.• Domed rubber ring.• Anti-slip bead or grooved anti-slip sole.• Removable protective top cover : protects the rubber and distributes

the load.

The design of the BECA mounting gives the following basiccharacteristics :• Transverse elasticity approximately the same as the axial elasticity

(equi-frequency).• Rubber works in compression.• Progressive buffer against shocks or accidental overload.• Anti-slip (may be placed directly on the ground).Advantages :• The machine may be placed (with its mountings) directly on the

ground.• Very slim.• Speed of fixing.• Simple removal of the assembly.• Extensive range: 3 hardnesses of rubber for 6 existing sizes, allowing

the mounting to be optimised as a function of the load and stimulationfrequency.

• A choice of 3 fixing styles.Recommendations :• In order not to affect the suspension of the machine, all external

connections must be flexible.• BECA mountings can be used for fixed, well-balanced rotating

machinery, otherwise a ballasting slab should be used.(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.Nota : BECA mountings can be replaced by PAULSTRADYN mountings.

DESCRIPTION

OPERATION

(1) Natural frequency :8 to 14 Hz

72

Nominal staticloaddaN

Deflectionmm

1-42-103-156-25

11-4511-4520-8022-90

30-120

22.53334.54.544

Type

Ø 40Ø 40Ø 60Ø 60Ø 60Ø 80Ø 80

Ø 100Ø 80

Hardness

456045607545604575

Nominal staticloaddaN

Deflectionmm

30-13040-16050-22060-25085-350

125-500200-825

310-1250

74476776

Type Hardness

4560756075456075

Hardness

Reference

Anti-slip base Diamond baseTypeSmooth

hole (fig. a)Smooth

hole (fig. b)Threaded

hole (fig. c)

Ø Amm

Bmm

B1mm

Ø Cmm

ØC1

Dmm

Ø Emm

Fmm

Jmm

Ø Mmm

Weightg

45.6045.60.7545.60.7545.60.7545.60.7545.60.7545.60.7545.60.7545.60.75

Ø 40Ø 60Ø 80

Ø 100Ø 100Ø 150Ø 150Ø 200Ø 200

------

533108--

533151--

533202--

----

533581--

533109--

533152--

533203

533641*533661533681

--533609

--533652

--533623

406080

100100150150200200

2024273027.541394644

1822.52528

25.538364240

--8.1

10.210.214.214.21818

M6M6M8

-M10

-M14

-M18

5276

100-

124-

182-

240

6.26.28.2-

10.2-

12.2-

14.5

6490

120-

148-

214-

280

222-2.5-4-5

191822222234344444

50140250420460

1220134027503030

Ø 150Ø 100Ø 100Ø 150Ø 150Ø 200Ø 200Ø 200

73

DIMENSIONS

OPERATING CHARACTERISTICS

* Ø 40, M6 - RAPID nut - max. torque 3 N.m. See current price list for availability of items.

BECA with anti-slip base BECA with lugs, smooth hole BECA with lugs, threaded hole

Section XX’ Section XX’ Section XX’

Fig. a Fig. b Fig. c

Ø M

ØC Ø C

Ø A Ø AØ C1

Ø M

Ø E Ø E

DF

X X X’ X’X

X’

B 1 B B1 B

J

1 kg � 1 daN

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

ASSEMBLY

74

BECA mountings in tandem (to double the deflection)

All our mountings are identified by conventional markings, either a paint spot or figuresindicating the hardness : grey = hardness 45, green = hardness 60, blue = hardness 75.

Mounting axisBECA with

smooth hole

BECA with threadedhole (welded nut)

Anti-rebound (prestressed)

Slab

Casing withinaccessible

base

BECA Ø 100 BECA Ø 150 BECA Ø 200

BECA Ø 40 BECA Ø 60 BECA Ø 80

POLYFLEX

DIMENSIONS

OPERATING CHARACTERISTICS

(1) Natural frequency : 9 to 20 Hz

75

See current price list for availability of items.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

Section XX’

A

CX X’

E

D

F

G

BH

Nominalstatic load

daN

Deflectionmm

1-51-72-8

2-103-154-185-207-30

3214352.53

Reference

532300532300532300532500532500532563532500532561

Hardness

4560754560457545

Nominalstatic load

daN

Deflectionmm

7-3010-4010-5010-5015-6015-6520-80

521.545.531.5

Reference Hardness

60607545756075

532563532561532561532750532563532750532750

Reference Ø Amm

Bmm

Ø Cmm

Dmm

Ø Emm

Fmm

Gmm

Hmm

532300532500532563532561532750

3050556075

1620232530

68

10.112.212.2

4066907695

6.18.28.28.5

11.0

5082

10695

118

813152025

1.52346

S.C.P. MOUNTING

DIMENSIONS

OPERATING CHARACTERISTICS

(1) Natural frequency : 9 to 15 Hz

76

See current price list for availability of items.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

Reference Ø Amm

Bmm

Ø Cmm

Dmm

Ø Emm

Fmm

Gmm

Hmm

530120530220530420

7492

124

536394

101216

7290

114

91113

90114144

323660

334

ReferenceLoaddaN

70140300

345

120200500

2.535

175300800

22.54

58010002550

Deflect.mm

LoaddaN

Deflect.mm

LoaddaN

Deflect.mm

530120530220530420

HARDNESS45

HARDNESS60

HARDNESS75 Weight

g

Section XX’

A

C

X

G

X’

E

D

F

B

D F

H

ISOFLEX

The ISOFLEX mounting comprises two concentric metallic parts joinedby a bonded, perforated rubber ring.

The design of the ISOFLEX mounting gives the following basiccharacteristics :

• Elasticity approximately the same in all directions (equi-frequentmounting).

ISOFLEX mountings may be used for suspending any small measuringor recording equipment, mobile equipment, machine tool controls.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

APPLICATIONS

(1) Natural frequency :11 to 15 Hz

77

To avoid toppling or canting, the suspension should be designed so thatthe centre of gravity of the suspended equipment is close to thegeometrical centre of the suspension.

Fixing method

78

DIMENSIONS

OPERATING CHARACTERISTICS

See current price list for availability of items.

ASSEMBLY

All our mountings are identified by conventional markings, either a paint spot or figuresindicating the hardness:grey = hardness 45, green = hardness 60, blue = hardness 75.

Reference Hard.Ø Amm

Bmm

Ø Cmm

Dmm

Ø Emm

Fmm

Gmm

Hmm

Jmm

Weightg

552428552231552241

Fig.Type

RI.20I.30

abb

5045-6045-60

2825.438.1

810.315.9

4.24.26.2

3625.434.9

3.23.64.2

4431.844.5

44.27.3

31-

-4.37.3

91030

Nominalstatic load

daN

33

2.5

Deflectionmm Type Reference Hard.

RI.20I.20

552428552231552231

504560

0.25-10.50-20.75-3

Nominalstatic load

daN

Deflectionmm Type Reference Hard.

I.30

I.30

552241

552241

45

60

1-4

1.5-6

3

2

Fig. a Fig. b

Ø A

ØC

Ø E

Ø E

GH

B

D

D

F

FD

B

GJ

H

Ø A

Ø C

ISODYNE

The ISODYNE mounting comprises two half mountings joined together.

The design of the ISODYNE mounting gives the following basiccharacteristics :

• A very high axial to radial stiffness ratio.• Vertical fixing avoiding excessive inclination of the equipment.• Fixing at any angle.• Safe, anti-rebound.

ISODYNE can be used to suspend lightweight equipment in a verticalplane.

DESCRIPTION

OPERATION

APPLICATIONS

79

Ø C

Ø E

X’

X

D F

D

F

B

J

Fixing clearances (approximate)

Fixing to wallVertical wall

Suspended equipment

Suspended equipment

frame

mounting

Fixing to frame

H

G

80

DIMENSIONS

OPERATING CHARACTERISTICS

See current price list for availability of items.

ASSEMBLY

GmmReference H

mm

284047

551321551441551571

182022

Reference Hardness

504545.60

Bmm

Ø Cmm

551321551441551571

161820

4.26.58.2

Dmm25.43545.5

Ø Emm3.54.26.2

Fmm3244.557.5

Jmm1.622

Weightg102450

Nominal staticloaddaN

Deflect.mm Reference Hard.

2.510

13

551321551441

5045

Nominal staticloaddaN

Deflect.mm Reference Hard.

2535

2.52.5

551571551571

4560

Fixing a control panel against a wall orvertical frame.

Section XX’Load

S.L.F.MOUNTS

SILICONE RUBBER / SPECIAL ELECTRONICS

Natural frequency :10 to 25 Hz

Low frequency high deflection antivibration mounting available in a choice of elastomersincluding high damped silicone. The zinc plated mild steel metalwork is fully bonded forimproved fatigue strength.

These mounts have been designed to protect low mass components and instruments fromvibration and shock and to isolate small rotating machines e.g. pumps and electric motors.

Maximum sinusoidal input at resonance : ± 0.5 mm.Resonance frequencies at maximum input : 10 to 25 Hz dependent on axis and load.Axial to radial stiffness : 3 : 1.Amplification at resonance : silicone mounting : 4 rubber mounting : 10.Maximum displacement during shock : axial : 5 mm.

radial : 7 mm.Mechanical strength corresponding to a continuous acceleration of 10 g at maximum load.

DESCRIPTION

APPLICATIONS

DIMENSIONS

SMALL LOADS / HIGH DEFLECTIONS

OPERATING CHARACTERISTICS

81

Improved stability can be achieved if the mounts are inclined at 45° towards the centre ofgravity.

ASSEMBLY

Roll

M 4 x 0.7

Max depth of thd from face : 5.0 Compression Weight : 6 g approx.

Ø 1

4.0

8.75

17,5 8,5

12.5

M 4

x 0

.7th

d

10

Shear

555507

NB : The * define the type of fixing : combination fixing : 555507 male/male fixing : 555505 female/female fixing : 555506

Partnumber

- 40 to + 70°C

- 54 to + 150°C

0.10 - 0.400.40 - 0.80

0.10 - 0.150.15 - 0.30

0.10 - 0.500.50 - 1.00

0.10 - 0.250.25 - 0.50

0.10 - 1.501.50 - 3.00

0.10 - 0.500.60 - 0.80

Temperature forcontinuous operation

Static loadin shear

kg

Static loadin roll

kg

Static loadin compression

kg

55500*4255500*72

55500*0155500*02

Mix

Silicone 42 ShSilicone 70 Sh

NR 50 ShNR 70 SH

New !

“SANDWICH”MOUNTING

The SANDWICH mounting comprises one or more layers of elastomerbonded to flat, parallel metallic plates. These mountings may becylindrical or rectangular. They are designed to withstand very highcompressive loads. The range of mechanical characteristics is gover-ned by the hardness of the rubber and the number of intermediatemetallic plates.

These mountings can support compression from 20 to 100 bars.

The metal plates usually receive a phosphate anti-corrosion treatment.

The elastomer is polychloroprene which provides a high resistance toatmospheric exposure.

The design of the SANDWICH mounting gives the following basiccharacteristics :

• Very slim.• Large surface area.• Stackable mountings.• The suspended equipment is free to move in all directions.• High ratio of axial stiffness to radial stiffness.• Very high axial loads.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency :5 to 13 Hz

82

E

LL

B

H

HA

A

M

B

h

Ø C

D

==

83

MOUNTINGS WITH FIXING PLATES Fig. A

MOUNTINGS WITHOUT FIXING PLATES Fig. B

See current price list for availability of items.

Nominalstatic load

1000-4000

1250-5000

2500-10000

6250-25000

3750-15000

Deflectionmm

12

7

6

3.5

5

Reference

539821

539608

539607

539267

539607

Hard.

50

60

45

70

60

Nominalstatic load

5000-20000

7500-30000

11250-45000

15000-60000

Deflectionmm

6

7

5

4

Reference

539612

539612

539613

539933

Hard.

45

60

60

60

Reference withoutintermediate plate

539608

539612

539613

539821

Reference withintermediate plate

539607

539933

539267

Amm

182

372

702

160

283

Bmm

142

252

252

110

140

Dmm

255

460

805

230

380

Emm

170

300

300

110

140

Hmm

49

61

61

58

76

hmm

Lmm

40

50

50

44

60

58

100

95

35

50

Mmm

235

430

765

202

340

Weightkg

5

18

35

5

9.5

N° holesx Ø C (mm)

6 x 9

6 x 13

6 x 17

4 x 15

6 x 18

Reference

539832539823539833539992539820539835539537539890539939539520539924539903539701519821519822519823

A (=D)mm

200220240250400405500510600650702800750200260280

B (=E)mm

165220200250300255500410500650252250750190230180

Hmm

38270

38140

786166.582

125152

52190300

606060

Maximum static loaddaN

95 000150 000145 000200 000380 000310 000870 000700 000

1 000 0001 500 000

450 000480 000

2 000 000115 000185 000143 000

Fig. BFig. A

H

Ø A

Ø C

B

A H

h

84

CYLINDRICAL MOUNTINGS

DOMINANTLY RADIAL MOUNTINGS

Various types of fixing are available. Consult us for information.

Reference

539904544051539796539983539539539938539937539900544078544079544080

Amm115150200200275320350400600600860

Hmm

Nominal static loaddaN

54110

96.590

27519

105117167285300

1 50012 00018 000

5 0005 000

100 000110 000150 000300 000433 000650 000

Amm

* Multilayer laminated part. Various types of fixing are available. Consult us for information.

Reference

534646

534647

534455

534456

539898*

539917*

539940

539806

544051*

hmm

Bmm

Hmm

Ø Cmm

12,5

12,5

16,5

16,5

13

13

18

18

17

70

70

86

86

100

76

350

120

110

120

120

190

190

146

146

430 x 219

330 x 170

190 x 110

62

62

74

74

88

66

318

100

100

150

150

232

232

180

180

300 x 480

360 x 200

240 x 160

Shear

mm

20

20

25

25

10

10

70

30

50

daN

200

150

500

625

400

250

4500

1200

1800

1 500

1 000

2 000

3 500

3 000

1 500

13 000

3 000

10 000

CompressiondaN

ELIGO

85

See current price list for availability of items.

Reference

537070

537007

537001

537000

537137

537115

537117

537119

537120

537144

537116

537114

148

175

200

87

157

250

340

149

284

400

380

450

Ø Amm

Ø Bmm

Dmm

Hunloaded

mm

Nominalstatic load

daN

Deflectionmm

70

70

70

92

140

155

155

212

212

260

283

283

28

28

28

61

74

80

80

118

118

119

148

148

41

61

62

20

30

62

91

40

78

143

150

180

300

300

180

350

1500

1000

1000

2500

2500

6650

5500

6000

4

4

4

7

14

10

10

12

12

18

20

20

H

D

Ø A

Ø B

SUPPORTSANDBUMP STOPS

86

See current price list for availability of items.

Reference : 514202 - Hardness : 75 - Compressiveload : 5000 daN - Deflection : 8 mm

Reference : 534501 - Hardness : 60 - Load :Compression : 2500 daN - Deflection : 15 mm -Shear load : 300 daN - Deflection : 10 mm

Reference : 817505 - Hardness 60 - Compressiveload : 1500 daN - Deflection : 5 mm

Reference : 813501 - Hardness : 60 - Compressiveload : 1000 daN - Deflection : 4 mm

Reference : 813504 - Hardness 60 - Compressive load :3000 daN - Deflection : 9 mm

Reference : 817605 - Hardness 60 - Compressiveload : 2000 daN - Deflection : 1.4 mm

Reference : 813506 - Hardness 60 - Compressiveload : 4000 daN - Deflection : 2.4 mm

87

See current price list for availability of items.

Deflection : 14 mmMaximum load : 150 daNReference 512389

Deflection : 35 mmMaximum load : 3 000 daNReference 519186

Deflection : 45 mmMaximum load : 4 800 daNReference 512991

M 8M 12

170

200

Ø 14.5

120

160

200

220

160

190

70

3817

47 9436

102

60

10

88

Reference Fig. Amm

Bmm

Cmm

Dmm

Emm

Hmm

Deflectionunder load

mm

LoadmaxiKN

Ø d

E1V-3245-04*E1V-3568-01*E1V-3892-01*E1V-3914-01*E1V-3921-01*E1V-3922-01*E1V-3927-01*E1V-3931-01*E1V-3932-01*E1V-3940-01*E1V-4031-01*E1V-4059-11*

519805519830

43211212111112

135126196170170180170110170170170234170100

125

140110110180110110110

88110125110110

10680

174140140148140

92140140140200140

80

85

118

148

92

90

53533633333533

11036854050564090302065705062

--104025313225--

15.51041403125

50592520286028.52650302551.22812.5

M105/16 or M8

13151515159

151515141511

See Paulstraelastomer range:

Stops

*Vibrachoc range

KN

mm

Distortionunder load

Advantages:- sliding plate.

- integrated stop.- progressive stiffness.

curve exampleLoadmaxi

Fig. 4Fig. 3Fig. 2Fig. 1

OTHERMOUNTINGS

89

See current price list for availability of items. 1 kg � 1 daN

Reference 539515

Ø 9

6

22

4

Ø 15

Ø 36

Ø 27

Compression

Compression:

Deflection: 1.8 mmMaximum load: 3 daN

Reference 544172-11

SMALL LOADS VERSATILE MOUNTING

New !

Ø 96

Ø 54

Ø 285

Ø 420 approx.

1015

205

ReferenceA

mmB

mmH

mmØ C Ø C1

Gmm

G1mm

Lmm

Numberintermed.

plates

538076

539214

539377*

100

100

100

70

70

70

46

46

46

M10

M10

M10

M12

M12

M12

34

31

33

23

23

23

50

50

50

-

2

1

DIMENSIONS

OPERATING CHARACTERISTICS

Reference Hardness Static loaddaN

Deflectionmm

538076

539214

539377

45

40

60

300

300

300

5

1

0.7

90

* This reference has 4 screws.

A

G1B

Ø C

Ø C

H G

Ø C

1

L

* This reference has 4 screws.

DIMENSIONS

OPERATING CHARACTERISTICS

Reference

Reference HardnessAxial stiffness

Load daN

150

230

200

Deflection mm

2

2

4.5

539004

539743

50

60

45

Amm

Bmm

Ø Cmm

Ø C1mm

Dmm

Emm

Hmm

Jmm

Lmm

Mmm

539004539743

5474

4071

15.816.25

25.4 102105

7692

13.533.5

33

82.582.5

-69.5

91

Reference 539004

L

D

E

Ø C1

Ø A

J

H

B

Ø C

Reference 539743

Ø A

Ø C

H

BDL

J

E

M

1 kg � 1 daN

92

ReferenceA

mmC

mmLoaddaN

Fig.

544099

539586

539873

544059

538040

539437

180

190

190

190

280

350

172

170

172

175

252

275

2500

2800

3000

3000

4000

6000

1

1

1

1

3

2

Fig. 1 Fig. 2 Fig. 3

CCC

A AA

Ø 290

M 24

Ø 114

100

Ø 21

Ø 260

Ø 310

93

Reference 539925

Reference 539972Also exists with anti-rebound stop - Reference 539971

770

267

840

900

980

Vertical stiffnessdaN/mm

AE

D

A

P

α

C

A

B

F

C

A

B

B

E12

0°D

B

94

Section AA’ Section BB’

Fig. 2Fig. 1

CHEVRON MOUNTINGS

Reference

544066

539555

539376

538000

539549

539952

246

250

191.5

191

152

179

213

184.5

178

141

160

179

52

60

30

95

79

70

154

197

193

113

130

140

203

240

123

203

300

197

7000

8000

6000

3400

4500

5500

22

5

22

16

26

26

1

1

1

1

2

2

200

120

166

68

80

75

Amm

Bmm

Cmm

Dmm

Emm

LoaddaN

αmm Fig.

-

-

-

-

231

197

Fmm

Ø 300

4 holes Ø 22 on Ø 260

Ø 40

Ø 100

Ø 260

Ø 160

10

120

145

Ø 58

M 12

Ø 11.5

92

34

65

115

90M 10

Ø 8.5

86

36

61

106

4570

95

Deflection : 3 mmMaximum load : 150 daNReference 534135

Deflection : 5 mmMaximum load : 250 daNReference 539243

Deflection : 12 mmMaximum load : 6 000 daNReference 539024

96

Compression :

Deflection : 4.5 mmMaximum load : 800 daN

Shear :

Deflection : 6.5 mmMaximum load : 80 daN

Reference 534079

77

5

46

90

78

100

122

Ø 10.5

M 10

Reference E4330-F11

20

Ø 3.2

6.5

Ø 3

1.6

3

VERY LOW LOADS MOUNTING (hard disk, etc.)

New !

LONG TRAVEL

AIR SPRING

The PAULSTRA air spring is a rubber-coated flexible structure seatedand sealed with internal and external steel supports.

The air spring is designed to have the following basic properties :

• Low natural frequency.• Lateral stiffness.• Adjustable height.• Withstands adverse weather conditions and temperatures from - 40°C

to + 70°C.

(1) Natural frequency with max. load, see chapter : OPERATING CHARACTERISTICS.

DESCRIPTION

OPERATION

(1) Natural frequency :1 Hz

97

The air spring must be mounted on an upper plate using a flange thesame shape as the air spring to provide a good seal. The lower part ofthe membrane may rest on a rigid support with a restraining andsealing bead.

PAULSTRA also offers a flexible mounting for the air spring to enablethe suspension to be used in non-standard applications or undertorsion.

Ask us for details of the mounting dimensions.

OPERATING CHARACTERISTICS

ASSEMBLY

98

Reference

545023

H int.mm

120

H ext.mm

250

Ø max. at6 bars (mm)

800

Maximumstatic load

Kn

160

Naturalfrequency*

Hz

1

Stiffness at120 kN/m

62

* Without additional chamber.

Ø max.

H ext.

6 holes Ø 45

8 holes Ø 42

Ø 1050

Ø 120010

0035

810250 x 3

1000

35

1360

1220

35

HEAVY DUTYFENDERS

99

Trapezoidal shock fender Reference 519786

Compression fender Reference 539634

Energy (Joules)

Force (tonnes)

Deflection (m)

Max Force (tonnes)

280 000

83

0.45

166

Energy (Joules)

Force (tonnes)Deflection (m)

200 000

60

0.4

134

Ø 6

3

Ø 32

10

200 250 500 250500

40

2000

250

Ø B

Ø A

C

100

Reference

811203811189

Max radial load(tonne)

4090

Max axial load(tonne)

70150

Weight (kg)

70115

Reference

811203811189

A (mm)

482.4533

B (mm)

787.4864

C (mm)

228.6300

Dimensions

Energy (Joules)

Force (tonnes)

Deflection (m)

14 000

15

0.1

Intermediate lengths on request Characteristics for a length of 1 m

Force is dependent on fixing.Consult us for information.

Protection ring

Trapezoidal shock fender Reference 519794

6 holes Ø 45

720

600

960

200

200

200

180

A-A

A A

4545

H

820

150

F

Section A

Ø 14 A

225 400 400 400 400 400

2450

210

250

9015

101

Energy (Joules)

Force in shear (tonnes)

Deflection in shear (m)

Compression static load (tonnes)

Compression static deflection (mm)

36

0.62

40

30

1 100 000

Weight # 755 kgHeight (mm) = 700 ± 5

Rectangular buffer Reference 519782

Shock fender to shear Reference 539652

Energy (Joules)

Force (tonnes)

8 000

150

Weight # 90 kg

Intermediate lengths on request.

STRASONIC®

102

STRASONIC is a range of complex materials designed to provide thebest acoustic isolation. Their structure is based on polyurethane foamsor cellular rubber.

Their main function is to reduce airbone noise (Isolation, Absorptionand Damping) in partial or complete enclosures of machinery.

The STRASONIC material can be used in a range of applications suchas : air conditioning, pumps, presses, compressors, electric motorsdiesel engines, generator sets, gearboxes, turbines, agricultural orconstruction equipment and other machinery.

Due to their design (Sheets of 500 mm x 500 mm or 500 mm x 700 mm)they are easy to handle, light and a self adhesive side simplifies theinstallation (depending of the type of foam).

DESCRIPTION

APPLICATIONS

New !

103

Structure

CHARACTERISTICS OF THE STRASONIC® RANGE

POLYURETHANE FOAMS

Reference Structure Composition and properties Acoustic performances Applications

841000

50 mm of corrugated PU Ether absorp-tion foam. Self adhesive layer on oneside.Temperature range:from - 25°C to + 110°C.Fire resistance: M4/UL94.

Average absorption factor K: 65%Approximate gain on a 2 mm steelsheet: - 10 dB (A).The corrugations increase theabsorption surface by 40%.

- Air conditioning,- Fans,- Ventilation shaft- Pumps- Presses,- Air compressors, ...

841001841001-50

50 mm of heavy weight 5 kg/m2,corrugated PU Ether absorption foambonded to 3 mm of spring foam.Temperature range:from - 25°C to + 110°C.Fire resistance: M4/UL94.

Average absorption factor K: 68%.Approximate gain on a 2 mm steelsheet: - 25 dB (A).Very good performance from500 Hz to 5000 Hz.

- Air compressors,- Gearboxes,- Presses,- Compressors,- Electric motors , ...

841002

100% waterproof black PU filmbonded to 25 mm of heavy weight5 kg/m2 corrugated PU Ether absorptionfoam bonded to 3 mm of spring foam.Temperature range:from - 25°C to + 110°C.Fire resistance: M4/UL94.

Approximate gain on a 2 mm steelsheet: - 20 dB (A).Very good performance from125 Hz to 4000 Hz.

- Generator sets,- Agricultural and Construc-

tion, equipment machines,- Electric and Diesel engines,- Compressors, Pumps,- Turbines- Test benches, ...

Format: sheets of 500 mm x 700 mm.

Please consult us for availability of the adhesive (non stocked item).

CELLULAR RUBBER

Packaging

Can 5 litresCan 1 litre

To adhere the sheets (part number 841001 and 841002) we recommend the STRAGLUE®

Ref. Color

Soft brownSoft brown

Density

0.89 g/ml0.89 g/ml

Drying time

1 to 3 minutes1 to 3 minutes

Temperatureresistance

� 80°C� 80°C

Solver

HydrocarbonHydrocarbon

Advisedquantity

120 g/m2/face120g/m2/face

841010841011

Reference Composition and properties Acoustics performances Applications

841003

NBR based waterproof cellular rubber,thickness 33 mm. Self adhesive layeron one side.Temperature range static from - 40°C to+ 105°C continuous.Very good resistance to oil, ozone, airand UV.Fire resistance: M4/FMVSS 302.

Average absorption factor K ≥ 30%from 500 Hz.Very good acoustic performance inhigh frequencies above 2500 Hz.Approximate gain on a 2 mm steelsheet: - 10 dB (A) at 2500 Hz /- 20 dB (A) at 5000 Hz.

- Sand blasting systems, Saws,- High speed drills,- Vacuum pumps,- Injection presses,- Gearboxes...

841004

EPDM based cellular rubber with halfclosed cells. Thickness 15 mm. Selfadhesive layer on one side.Temperature range continuous from - 40°C to + 130°C.Very good resistance to air, ozone andUV. Very flexible. Good ageing resis-tance. Waterproof if slightly compressed.Fire resistance: FMVSS 302.

Average absorption factor K ≥ 30%from 600 Hz.Very good acoustic performance in high frequencies above 2000 Hz.Approximate gain on a 2 mm steelsheet: - 8 dB (A) at 2500 Hz / - 20 dB(A) at 5000 Hz.

- Air Jet positioning,- Sand blasting systems, Saws,- High speed drills,- Vacuum pumps,- Injection presses,- Gearboxes...

841005

EPDM based cellular rubber half closedcells. Thickness 22.5 mm. Self adhesivelayer on one side.Temperature range continuous from - 40°C to + 130°C.Very good resistance to air, ozone andUV. Very flexible. Good ageing resis-tance. Waterproof if slightly compressed.Fire resistance: FMVSS 302.

Average absorption factor K ≥ 30%from 500 Hz.Very good acoustic performance in high frequencies above 2000 Hz.Approximate gain on a 2 mm steelsheet: - 10 dB (A) at 2500 Hz / - 27 dB (A) at 5000 Hz.

- Air Jet positioning,- Sand blasting systems, Saws,- High speed drills,- Vacuum pumps,- Injection presses,- Gearboxes...

Format: sheets of 500 mm x 500 mm.

Reference 841001-50: Self adhesive layer on one side version.

104

ALPHABETIC INDEX - PAULSTRA RANGE

BatraBatraBatraBatraBatraBatraBatraBatraBatraBatraBatraBatraBatra

BecaBecaBecaBecaBecaBecaBecaBecaBecaBecaBecaBecaBeca

Bogie mounting

Chevron mounting

Mounting

Chevron mountingChevron mountingChevron mountingChevron mounting

Conical bump stopConical Bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stop

Cylindrical SandwichCylindrical SandwichCylindrical SandwichCylindrical SandwichCylindrical SandwichCylindrical SandwichCylindrical SandwichCylindrical SandwichCylindrical Sandwich

Diabolo bump stopDiabolo bump stopDiabolo bump stopDiabolo bump stopDiabolo bump stopDiabolo stud

541050541082541083541100541112541144541145541146541174541175541185541249541250

533108533109533151533152533202533203533581533609533623533641533652533661533681

539549

539952

514202

538000539376539555544066

512215512251521301512307512501512502512503512516512517512601512608512700512721512951

539796539900539904539937539938539983544078544079544080

511571511572511601511801511951521201

71717171717171717171717171

73737373737373737373737373

94

94

86

94949494

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Diabolo studDiabolo studDiabolo studDiabolo studDiabolo studDiabolo studDiabolo studDiabolo stud

EligoEligoEligoEligoEligoEligoEligoEligoEligoEligoEligoEligo

Engine mountingsEngine mountingsEngine mountingsEngine mountings

Triaxdyn

EvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgom

521300521403521571521572521602521801521802521951

537000537001537007537070537114537115537116537117537119537120537137537144

905201905202905203905206

905233

810002810003810004810005810006810008810009810012810013810014810015810016810019810020810022810023810025810029810035810046810642810644810645810653810655810666810669810731810732810733810734810735810736810766810768810769810770810773810775810776810779

3737373737373737

858585858585858584858585

50505050

48

5656625656565656565656565656626262626262626262626262626262

56-576262

56-5756-5756-5756-5756-5756-5756-5756-5756-57

EvidgomEvidgom

IsodyneIsodyneIsodyne

IsoflexIsoflexIsoflex

Heavy duty fenderHeavy duty fender

LevaflexLevaflexLevaflexLevaflexLevaflex

Locomotive mountingLocomotive mountingLocomotive mountingLocomotive mountingLocomotive mountingLocomotive mounting

MinifixMinifixMinifixMinifixMinifix

Mounting

MountingMountingMountingMountingMountingMountingMounting

MountingMountingMountingMountingMountingMountingMountingMountingMountingMountingMountingMountingMountingMountingMounting

NivofixNivofixNivofixNivofixNivofixNivofixNivofixNivofix

PaulstradynPaulstradyn

810780810784

551321551441551571

552231552241552428

539652539634

514085514110514130514160514200

538040539437539586539873544059544099

530801530802530805530806530807

E4330-F11

534501813501813504813505813506817505817605

530170534079534135538076539004539743539515539214539024539377539243539925539971539972

544172-11

530810530815530820530825530830530835530840530850

533701533702

56-5756-57

808080

787878

10099

6262626262

929292929292

6767676767

96

86868686868686

899695909191969095909593939389

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39-4139-41

Designation Reference Page Designation Reference Page Designation Reference Page

105

PaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradyn

Pneumatic mounting

PolyflexPolyflexPolyflexPolyflexPolyflex

Protection ringProtection ring

Radiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stop

533703533704533705533706533707533708533709533710533711533712533713533714533715533716533717533719

545023

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811189811203

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511110511115511125511128511150511151511152511153511154511155511156511157511158511159511160511161511162511163511164511200511215511220511225511230511251511265511270511275511280511285511290511292511294511296511298511308511310511312511314511401511450511452511454

39-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-41

98

7575757575

100100

3535

35-6135-6135-6135-6135-6135-6136-6136-6136-6135-6136-6135-6135-6135-6135-6135-6136-6136-6136-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-61

Radiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stop

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

511456511525511535511545511625511635511645511735511750511770511830511840511870511880513601513801

520010520011520012520013520015520016520017520018520021520022520023520024520025520026520027520028520029520030520031520032520033520035520036520038520039520040520041520042520044520045520046520052520053520054520055520056520057520058520059520089520100520101520102520103520500520501520502520503520505520506520507520508520511520512520513520514520516520517520518

35-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-6135-61

3535-61

3636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

520520520521520522520523520525520526520528520529520530520531520532520534520535520536520541520542520543520545520546520547520550520551520552520553520554520555520556521128521161521178521181521249521251521292521293521294521295521296521297521298521299521308521310521312521314521319521340521341521342521343521344521401521450521452521454521456521580521581521582521601521603521641521650521651521653521653521655521656521657521658521705521710521711521803521840521841521842

3636363636363636363636363636363636363635363636363636363535353535353535353535353535353535353535353535353535353535353535353535353535353535353535353535353535

Designation Reference Page Designation Reference Page Designation Reference Page

106

Radiaflex studRadiaflex studRadiaflex studRadiaflex stud

Rectangular buffer

SandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwichSandwich

521843521908521909521910

519782

519821519822519823534455534456534646534647539267539520539537539607539608539612539613539701539820539821539823539832539833539835539890539898539903539917539924539933539939539940539992544051

35353535

101

83838384848484838383838383838383838383838383848384838383848384

S.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mounting

S.C.P. mountingS.C.P. mountingS.C.P. mounting

S.L.F.S.L.F.S.L.F.

Special bump stopSpecial bump stopSpecial bump stopSpecial bump stopSpecial bump stop

StabifixStabifixStabifix

531201531216531240531259531261531301531327531401531402531611531701531702531714531931531932531933531939531940531941531947

530120530220530420

555005555006555007

512389512991519186519805519830

530170530175530181

52-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-53

767676

818181

8787878888

464646

StabifixStabifix

StabiflexStabiflexStabiflexStabiflexStabiflex

S.T.C.S.T.C.S.T.C.S.T.C.S.T.C.S.T.C.

StrasonicStrasonicStrasonicStrasonicStrasonicStrasonicStrasonic

StraglueStraglue

Trapezoidal fenderTrapezoidal fender

TraxiflexTraxiflexTraxiflexTraxiflexTraxiflexTraxiflexTraxiflex

Triaxdyn

530184530185

530603530613530622530642530652

539190539191539886539887539920539951

841000841001

841001-50841002841003841004841005

841010841011

519786519794

535600535603

53560631535611535612535621535622

905233

4646

4343434343

595959595959

103103103103103103103

103103

99100

69696969696767

46

Designation Reference Page Designation Reference Page Designation Reference Page

NUMERIC INDEX - PAULSTRA RANGEReference Designation Page Reference Designation Page Reference Designation Page

E3RP0953E3RP0956

E4330-F11

511110511115511125511128511150511151511152511153511154511155511156511157511158511159511160511161511162511163511164511200511215511220511225511230511251511265511270511275511280511285511290511292511294511296511298511308511310511312511314511401511450511452511454511456511525511535511545

511571511572511601

511625511635511645511735511750511770

511801

511830511840511870511880

511951

512215

Radiaflex bump stopRadiaflex bump stop

Mounting

Radiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stop

Diabolo bump stopDiabolo bump stopDiabolo bump stop

Radiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stop

Diabolo bump stop

Radiaflex bump stopRadiaflex bump stopRadiaflex bump stopRadiaflex bump stop

Diabolo bump stop

Conical bump stop

3535

96

35-5935-5935-5935-5935-5935-5936-5936-5936-5935-5936-5935-5935-5935-5935-5935-5936-5936-5936-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-5935-59

616161

35-6135-6135-6135-6135-6135-61

61

35-6135-6135-6135-61

61

61

512251512301512307

512389

512501512502512503512516512517512601512608512700512721512951

512991

513601513801

514085514110514130514160514200

514202

519186519389519805519830

519782

519786519794

519821519822519823

520010520011520012520013520015520016520017520018520021520022520023520024520025520026520027520028520029520030520031520032520033520035520036520038520039520040

Conical bump stopConical bump stopConical bump stop

Special bump stop

Conical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stopConical bump stop

Special bump stop

Radiaflex bump stopRadiaflex bump stop

LevaflexLevaflexLevaflexLevaflexLevaflex

Mounting

Special bump stopSpecial bump stopSpecial bump stopSpecial bump stop

Rectangular buffer

Trapezoidal fenderTrapezoidal fender

SandwichSandwichSandwich

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

616161

87

61616161616161616161

87

3535-61

6262626262

86

87878888

101

99100

838383

3636363636363636363636363636363636363636363636363636

520041520042520044520045520046520053520054520100520101520102520103520500520501520502520503520505520506520507520508520511520512520513520514520516520517520518520520520521520522520523520525520526520528520529520530520531520532520534520535520536520541520542520543520545520546520547520550520551521128521178

521201

521249521251521292521293521294521295521296521297521298521299

521300

521308521310521312521314

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

Diabolo stud

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

Diabolo stud

Radiaflex studRadiaflex studRadiaflex studRadiaflex stud

3636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636363636

37

35353535353535353535

37

35353535

107

Reference Designation Page Reference Designation Page Reference Designation Page

521319521340521341521342521343521344521401

521403

521450521452521454521456

521571521572

521580521581521582521601

521602

521603521641521650521651521705521710521711

521801521802

521803521840521841521842521843521908521909521910

521951

530120

530170530175530181530184530185

530220530420

530603530613530622530642530652

530805530806

530810530815530820530825530830530835

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

Diabolo stud

Radiaflex studRadiaflex studRadiaflex studRadiaflex stud

Diabolo studDiabolo stud

Radiaflex studRadiaflex studRadiaflex studRadiaflex stud

Diabolo stud

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

Diabolo studDiabolo stud

Radiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex studRadiaflex stud

Diabolo stud

S.C.P. mounting

StabifixStabifixStabifixStabifixStabifix

S.C.P. mountingS.C.P. mounting

StabiflexStabiflexStabiflexStabiflexStabiflex

MinifixMinifix

NivofixNivofixNivofixNivofixNivofixNivofix

35353535353535

37

35353535

3737

35353535

37

35353535353535

3737

3535353535353535

37

76

4646464646

7676

4343434343

6767

666666666666

530840530850

531201531216531240531259531261531301531327531401531402531611531701531702531714531931531932531933531939531940531941531947

532300532500532561532563532750

533108533109533151533152533202533203533581533609533623533641533652533661533681

533701533702533703533704533705533706533707533708533709533710533711533712533713533714533715533716533717533718533719

534079534135

534455534456

534501

534646

NivofixNivofix

S.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mountingS.C. mounting

PolyflexPolyflexPolyflexPolyflexPolyflex

BecaBecaBecaBecaBecaBecaBecaBecaBecaBecaBecaBecaBeca

PaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradynPaulstradyn

MountingMounting

SandwichSandwich

Mounting

Sandwich

6666

52-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-5352-53

7575757575

73737373737373737373737373

39-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-4139-41

9695

8484

86

84

534647

535600535603

53560361535611535612535621535622

537000537001537007537070537114537115537116537117537119537120537137537144

538000

538040

538076539004539024

539190539191

539214539243

539267

539376

539377

539437

539515

539520539537

539539

539549539555

539586

539607539608539612539613

539634539652

539701

539743

539796

539806539820539821

Sandwich

TraxiflexTraxiflexTraxiflexTraxiflexTraxiflexTraxiflexTraxiflex

EligoEligoEligoEligoEligoEligoEligoEligoEligoEligoEligoEligo

Chevron mounting

Locomotive mounting

MountingMountingMounting

S.T.C.S.T.C.

MountingMounting

Sandwich

Chevron mounting

Mounting

Locomotive mounting

Mounting

SandwichSandwich

Cylindrical sandwich

Chevron mountingChevron mounting

Locomotive mounting

SandwichSandwichSandwichSandwich

Heavy duty fenderHeavy duty fender

Sandwich

Mounting

Cylindrical sandwich

SandwichSandwichSandwich

84

69696969696969

858585858585858585858585

94

92

909195

5959

9095

83

94

90

92

96

8383

84

9494

92

83838383

99101

83

91

84

848383

108

Reference Designation Page Reference Designation Page Reference Designation Page

539823539832539833539835

539873

539886539887

539890539898

539900

539903

539904

539917

539920

539924

539925

539933539937539938

539939539940

539951

539952

539971539972

539983

539992

541050541082541083541100541112541144

SandwichSandwichSandwichSandwich

Locomotive mounting

S.T.C.S.T.C.

SandwichSandwich

Cylindrical sandwich

Sandwich

Cylindrical sandwich

Sandwich

S.T.C.

Sandwich

Support

SandwichCylindrical sandwichCylindrical sandwich

SandwichSandwich

S.T.C.

Chevron mounting

MountingMounting

Cylindrical sandwich

Sandwich

BatraBatraBatraBatraBatraBatra

83838383

92

5959

8384

84

83

84

84

59

83

83

838484

8384

59

94

9393

84

83

717171717171

541145541146541174541175541185541249541250

544051

544059

544066

544078544079544080

544099

545023544172-11

551321551441551571

552231552241552428

555005555006555007

810002810003810004810005810006810008810009810012810013810014810015810016810019810020810022810023810025

BatraBatraBatraBatraBatraBatraBatra

Sandwich

Locomotive mounting

Chevron mounting

Cylindrical sandwichCylindrical sandwichCylindrical sandwich

Locomotive mounting

Pneumatic mountingMounting

IsodyneIsodyneIsodyne

IsoflexIsoflexIsoflex

S.L.F.S.L.F.S.L.F.

EvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgom

71717171717171

84

92

94

848484

92

9989

808080

787878

818181

5656625656565656565656565656626262

810029810035810046810642810644810645810653810655810666810669810731810732810733810734810735810736810766810768810769810770810773810775810776810779810780810784

811189811203

813501813504813506817505817605

841000841001

841001-50841002841003841004841005

841010841011

905201905202905203905206

905233

EvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgomEvidgom

Protection ringProtection ring

MountingMountingMountingMountingMounting

StrasonicStrasonicStrasonicStrasonicStrasonicStrasonicStrasonic

StraglueStraglue

Engine mountingsEngine mountingsEngine mountingsEngine mountings

Triaxdyn

626262626262626262626262

56-576262

56-5756-5756-5756-5756-5756-5756-5756-5756-5756-5756-57

100100

8686868686

103103103103103103103

103103

50505050

48

109

VIBRACHOC ELASTOMERRANGE

111

PROTECTION AGAINSTSHOCKS AND BUMPS

112

APPLICATION GUIDE FOR THE VIBRACHOC ELASTOMER RANGE

APPLICATIONS

MOBILE ORSTATIC FANS

MOBILE OR STATICAIR CONDITIONERS

COMPRESSORS

MOBILE OR STATICGENERATOR SETS

INTERNAL COMBUSTIONENGINES

LABORATORY EQUIPMENT

MOBILE OR STATICELECTRICAL ENCLOSURES

FRAGILE EQUIPMENT INCONTAINERS

COMPUTER EQUIPMENT

MOBILEELECTRONIC EQUIPMENT

VIBMAR ARDAMP®

113

APPLICATION GUIDE FOR THE VIBRACHOC ELASTOMER RANGE

APPLICATIONS

MOBILE ORSTATIC FANS

MOBILE OR STATICAIR CONDITIONERS

COMPRESSORS

MOBILE OR STATICGENERATOR SETS

INTERNAL COMBUSTIONENGINES

LABORATORY EQUIPMENT

MOBILE OR STATICELECTRICAL ENCLOSURES

FRAGILE EQUIPMENT INCONTAINERS

COMPUTER EQUIPMENT

SHIPBOARDELECTRONIC EQUIPMENT

PROTECTION AGAINSTSHOCKS AND BUMPS

SPECIALPACKAGING

SPECIALELECTRONICS

VIBMAR

The VIBMAR series has a base plate with two or four mounting holesand a tapped steel core.The elastomer is bonded to the steel.

E1N104 and E1N106 versions have a conical spring embedded in therubber.

Environmental protection is provided by painting the metal parts andby coating the elastomer with an ozone resistant compound.

These multi-axis low frequency dampers have been specially designedto protect electrical or electronic racks and marine or road transportgenerator sets (on board or not). They are cone-shaped to absorbconsiderable displacement and shocks.

DESCRIPTION

APPLICATIONS

114

Natural frequency :5 to 12 Hz

with nominal load

115

DIMENSIONS

VIBMAR E1N2296

OPERATING CHARACTERISTICS

Natural frequency:• axial: 8 to 12 Hz• radial: 6 to 10 Hz.

Maximum permitted excitation at the natural frequency of suspension: ± 1.25 mm.Maximum axial travel available for shocks: 30 mm.Amplification factor at resonance: < 6 and < 4 for silicone rubber versions.Structural strength corresponding to a continuous accelaration of 3 g with maximum load.When suspending an enclosure, the same type of damper should be used as a stabiliser.

Operating temperature: - 30°C to + 100°C.- 54°C to + 150°C for silicone rubber versions.

Weight: 0.6 kg.

Note: Product available with stainless steel plates (ref. E1N-3217) and/or alternative elastomers.Please consult us.

Reference Static loadsin daN

E1N2296-01E1N2296-02E1N2296-03

17-3035-5555-70

Reference Static loadsin daN

E1N2296 S01E1N2296 S02E1N2296 S03

10-1817-2520-30

SILICONE RUBBER VERSIONS

2 smooth holesØ 9

130

110

100

61 unloaded approx.56 under load approx.

5

1 tapped hole for screw M10

4

Ø 28

Ø 84

26usable

1 kg � 1 daN

116

VIBMAR E1N101

OPERATING CHARACTERISTICS

Natural frequency:• axial: 5 to 9 Hz• radial: 4.5 to 9 Hz.

Maximum permitted excitation at natural frequency of suspension: ± 1.5 mm.Maximum travel available for shocks: 30 mm in all directionsAmplification factor at resonance: grade 01 to 04 < 6.

grade 05 to 06 < 10.

Weight: 2 kg.

Reference Static loadsin daN

E1N101-01E1N101-02E1N101-03E1N101-04E1N101-05E1N101-06

50 - 8585 - 120

100 - 150130 - 210210 - 310310 - 530

Note: Product available with stainless steel plates and/or alternative elastomers on specialrequest. Please consult us.

DIMENSIONS

138

165

165

138

4 mounting holesØ 13

96 unloaded approx.86 under load approx.

1 tapped hole for screw M16

Ø 152

Ø 50

6

6

usable 44

1 kg � 1 daN

117

VIBMAR E1N104 - E1N106

OPERATING CHARACTERISTICS

Natural frequency :• axial : 5 to 7 Hz• radial : 6 to 8 Hz.

Maximum permitted excitation at the natural frequency of suspension : ±1.5 mm.Amplification factor at resonance : 04 < Q < 10.Maximum axial travel available for shocks : - axial ± 45 mm.

- radial ± 25 mm.Structural strength corresponding to a continuous accelaration of 10 g with maximum load.

Weight : 2 kg.

Reference Static loadsin daN

E1N104C45ASE1N104C60ASE1N104C75ASE1N106C60ASE1N106C75AS

200 - 360360 - 600500 - 800

700 - 1000900 - 1300

Note : the mountings may be moulded in other compounds to meet special environmentalrequirements. Ask us for details.

DIMENSIONS

180

220

180

220

4 mountingholesØ 17.5

146 unloaded approx.135 under loadapprox.

1 tapped hole for screw M20

Ø 200

Ø 58

10

8

usable55

“X” TYPEFLEXIBLE MOUNTINGS

Steel mounting with excellent shock absorption capacity, highlyresistant to fatigue.

It is made of a stainless steel and epoxy resin sandwich which limits theamplification.

DESCRIPTION

118

VIBRACHOCreference

NominalloaddaN

Hmm

hmm

Lmm

Mmm

Ø dmm

Ø Dmm

E1M-3950-01E1M-3951-01E1M-3952-01E1M-3953-01E1M-3954-01E1M-3955-01E1M-3956-01E1M-3957-01E1M-3958-01

10204570

110180320450450

114.3114.3133.3133.3133.3190.5190.5190.5209.6

106.,9106.9123.2123.6124.2185.4183.4184.4199.3

203.2203.2215.9215.9215.9297.2297.2297.2365.0

50.850.850.850.850.8

101.6101.6101.6

50.8

31.831.831.831.831.863.563.563.534.9

88

1212122020203/4”

Natural frequency :4 to 10 Hz

under nominal load

L

Ø d

Screw holes Ø D

Height unloaded

Height under load

H

h

M

ARDAMP®

The ARDAMP series dampers have a spring and piston embedded inhigh viscosity silicone rubber gel which itself is embedded in anelastomer membrane bonded to the case.

Due to their high performances and high shock damping capacityARDAMP dampers are designed to protect fragile electronicequipment, control panels and measuring instruments on groundvehicles, aircrafts, helicopters, civil and military submersible craft.

DESCRIPTION

APPLICATIONS

119

Natural frequency :10 to 25 Hz

under nominal load

120

DIMENSIONS

ARDAMP

S01E1FH781

C01

E1FH76E1FH77E1FH78

E1FH866C01E1FH2507-01

1 tapped holeØ D

1 tapped holeØ D

Ø C

G usable

G usable

He

e

4 mounting holesØ d 4 mounting holes

Ø d

4 mounting holesØ d

1 tapped holeØ D

Ø C

G usable

H

J

H

AA

A

B

B

B

e

h

J

B

B

A

A

J

B

A

Ø C

Ø Amm

ReferenceH

Unload.mm

H approx.under load

mm

Bmm

Cmm

Ø DE

mm

Gmaximm

Jmm

dmm

emm

hmm

Weightapprox.

E1FH781S01E1FH781C01

4243

3941

35 54 43 M5 10 12 4.5 5.5 120 g

E1FH866C01E1FH2507-01

47 46 49.2 65.3 61.5 M6 15 12 5.2 5230 g215 g

E1FH76-01E1FH76-02

7067

6665

63.5 77 70 M10 30 19 24 8.4 7.2 49 390 g

E1FH77-01 86 82 88 110.5 96 M12 40 24 34 8.4 8.5 62 930 g

E1FH78-01E1FH78-02

10298

9995

107.9 132 117 M16 54 25 44 11 9.5 77.5 1.5 kg

121

OPERATING CHARACTERISTICS

ARDAMP

Natural frequency :• axial : 10 to 25 Hz• radial : 10 to 20 Hz.

Damping : 20 % e (E1FH781, 866, 2507-01).17% e (E1FH76, 77, 78).

Amplification factor at resonance : 2.5 to 3 max.These dampers comply with SEFT 001A, AIR 7304, MIL STD 810 C.

SEFT 001 A AIR 7304MIL

STD 810 CNon standardapplications

Shocks andbumpsOZ axis

ReferenceLoad

kg perdamper

AxialFn

in Hz

RadialFn

in Hz

Loadkg perdamper

AxialFn

in Hz

RadialFn

in Hz

Load kgper

damper

AxialFn

in Hz

Load kgper

damper

RadialFn

in Hz

6 ms½ sineshocks

maxinput

g

11 ms½ sineshocks

maxinput

g

E1FH781S01E1FH781C01

0.2-22-5

20-25 15-204 16

1.5-3.53.5-8

10-20 70 g 38 g

E1FH866C01E1FH2507-01

8-15-

10-20-

12-20-

6-8-

20-25-

15-20-

8-

20-

8-155-8

10-206-10

50 g-

27 g-

E1FH76-01E1FH76-02

14-2018-30

10-2012-2011-16

7-129-20

20-25 15-201418

1817

14-2018-30

10-2040 g55 g

22 g30 g

E1FH77-01 20-50 10-20 10-17 30 15 20-50 10-20 50 g 25 g

E1FH78-01E1FH78-02

50-10090-130 10-20

10-1610-15

75100

1011

50-10090-130

10-20 40 g 22 g

E1C2321E1T2105SPECIAL PACKAGING

The special packing dampers have a flexible elastomer elementdesigned for various applications, bonded to two steel mounting plates.

These multi-directional dampers allow considerable deflection toprotect equipment transported in containers against drops andtransport shocks (missiles, aeronautical equipment).These dampers are also suitable for suspending equipment to beprotected against shocks and vibrations caused by explosions orearthquakes.

DESCRIPTION

APPLICATIONS

122

Natural frequency :10 to 25 Hz

under nominal load

123

DIMENSIONS

E1C2321

OPERATING CHARACTERISTICS

Natural frequency:• axial: 10 to 25 Hz• radial: 10 to 25 Hz.

Maximum permitted excitation at natural frequency of suspension: ± 1.6 mm.Maximum travel available for shocks: - axial 15 mm.

- radial 40 mm.Operating temperature: see table.Weight: 0.3 kg.

70

3

370

4 mounting holesØ 5.5 45.5

unload.approx.

4355

82

BR 60 ShBR 70 ShBR 80 Sh

Reference Axial static loadin daN Damping

Resistance tooils and

hydrocarbons

Resistanceto fatigue

Operatingtemperature

E1C2321S01

E1C2321S02

1-10

2-20*** * * - 54 to + 150°C

E1C2321-01E1C2321-02E1C2321-03

2-205-50

10-100* ** *** - 30 to + 100°C

E1C2321-21E1C2321-22E1C2321-23

2-205-50

10-100*** * *** - 40 to + 90°C

Material(1)

SIL 33 Sh

SIL 55 Sh

CR 60 ShCR 70 ShCR 75 Sh

(1) SIL: Silicone ; CR: Chloroprène-Rubber ; BR: Butadiene-Rubber. 1 kg � 1 daN

124

DIMENSIONS

E1T2105

OPERATING CHARACTERISTICS

Natural frequency :• axial : 10 to 25 Hz• radial : 10 to 25 Hz.

Maximum permitted excitation at natural frequency of suspension : ±1.6 mm.Maximum travel available for shocks : - axial 40 mm.

- radial 75 mm.Operating temperature : see table.Weight : 2.6 kg.

ReferenceAxial static load

daNDamping

Resistance tooils and

hydrocarbons

Resistanceto fatigue

Operatingtemperature

E1T2105S01E1T2105S02

2-204-40

*** * * - 54 to + 150°C

E1T2105-41E1T2105-42E1T2105-43

10-10020-20050-400

* *** ** - 25 to + 90°C

E1T2105-21E1T2105-22E1T2105-23

10-10020-20050-400

*** * *** - 40 to + 90°C

1 tapped holefor screw M16 16 usable

122

8

8

120

4 mountingholes

Ø 10.590unload.approx.

100 122

140

Stiffness (1)(2) (N/mm)Tolerance: ± 10 %

Characteristics

1.21.41.61.82.02.43.03.3

0.40.470.530.60.670.811.1

36404550556575

100

192025

Tolerance: ± 15 %

E: Elast. modul.(MPa)

G: Shear modul(MPa)

ELASTOMERMOULDED PARTS

These parts are usually supplied in VHDS (very high density silicone)rubber and the full reference should include:

- the letter S,- the appropriate grade which corresponds:• to the youngs modulus of the rubber under static compression in

accordance with ASTM D945 (ref. 33 to 77),• or to the stiffness measured on a part (ref. 16 to 25).

These standard VIBRACHOC grades are shown in the following table:

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

(1) measured on standardised Ø 19 - h 12.7 mm high part. 1 kg � 1 daN(2) linear region between 1 to 3 mm compression.

Example: E3RP0754S55 flat washer internal diameter 7, external diameter 30, height 6, inVHDS silicone, young modulus 2 MPa ; washer colour: brick red.

Other elastomers may be used: natural rubber, neoprene, EPDM, butyl rubber, nitrile rubber.

125

Reference

162025

3338424855637277

light bluegrey

browndark greenbrick redorange

light greenultramarine blue

yellowdark blue

black

Colour

126

DIMENSIONS

SILICONE RUBBER / SPECIAL ELECTRONICS

FLAT WASHERS

Reference

E3RP2439E3RP3419E3RP2062E3RP3291E3RP2061E3RP2667E3RP2025E3RP2024E3RP2401E3RP2282E3RP2281E3RP2959E3RP2453E3RP2403E3RP3534E3RP2402E3RP3162E3RP2882E3RP0590E3RP2883E3RP0591E3RP2404E3RP0754E3RP2148E3RP2149E3RP2454E3RP2406E3RP2405E3RP0607E3RP0608E3RP0588E3RP0777E3RP2436E3RP0609E3RP2045

2244455566.16.16.46.56.56.56.56.57777777.47.67.7888888888.5

6789

121215221812201211.813.515182512121616303011.517.611.8131618182224262626

10153.4454466432.5

104.5

14.524668367.567.74468446

104

Ø Int.mm

Ø Ext.mm

emm

Reference

E3RP2604E3RP2605E3RP2330E3RP2181E3RP2570E3RP2446E3RP3500E3RP0613E3RP2346E3RP2437E3RP0584E3RP2345E3RP2645E3RP0614E3RP0615E3RP2435E3RP0644E3RP0585E3RP0643E3RP0586E3RP2329E3RP2328E3RP0694E3RP0695E3RP0738E3RP2407E3RP3222E3RP2408E3RP2409E3RP3532E3RP0782E3RP2434E3RP0744E3RP0745E3RP2341

9999.59.59.5

1010101010101010101010101010111112121214141620202122313644.5

1319362024261820212222242526263030343434363617185022302932382938364483

44664446646646

126

1268

124644

126.537

10.535

17333.2

Ø Int.mm

Ø Ext.mm

emm

Ø Ext.

Ø Int.

e

127

DIMENSIONS

SILICONE RUBBER / SPECIAL ELECTRONICS

FLANGED WASHERS

GROMMETS

THREADED STUDS

Reference

E3RP0712E3RP2292E3RP3290E3RP0647E3RP0997E3RP2192E3RP2410E3RP3533E3RP0755E3RP2374E3RP2379E3RP0563E3RP2173E3RP0778E3RP2042E3RP3491E3RP3490E3RP0553E3RP0575E3RP2315

Ø dmm

Ø D1mm

Ø D2mm

Hmm

h1mm

h2mm

3.53.544.25666.57888888.59.5

10111216

1013

98

1812181530181819.82124262418245050

7.5665.8

108.5

101117121313.81314171814172828

4.775.43.3

247

108

1463.57688889

2222

3.23.33.41.7

14464.56322444444

1212

1.53.721.6

10343.5831.55244445

1010

Ø D1

Ø D2

Ø dh2

H

h1

Reference

E3RP2364E3RP0648E3RP0576E3RP3295E3RP3258

Ø D1mm

Ø D2mm

Ø D3mm

A1mm

A2mm

Bmm

44.2588

65.88

1212

88

121818

2.21.725.55.5

2.21.725.55.5

1.61.6436

Ø D1

Ø D3

Ø D2

A2

A1

B

Reference

E3RP0953E3RP0956E3RP2118E3RP0757E3RP0954E3RP0708E3RP0686

Ø Dmm10121620333333.2

Hmm

88

1623263953.5

Lmm

668/9.5

1213.213.212

Ø M

M3M3M5M5M6M6M6

Ø M

H

Ø D

L L

ELASTOMERPLATESE3PEPL

VHDS elastomer sheet.

These sheets may be used for making grommets, washers or anti-vibration mountings for equipment.There is a wide range of VIBRACHOC moulded parts, but in certaincases, such as prototypes - undefined specification, etc, it is oftenadvantageous to determine the suspension using elastomer compo-nents cut from sheet and bonded.

• Overall tolerances:- on the lengths: ± 5%- on the thickness: ± 3%

VIBRACHOC plates should be ordered using the following reference:E3PEPL ❏ ❏ S ❏ ❏ C ❏ ❏ ❏

1 2 3

1: dimension in cm.2: grade (see. table page 126).3: thickness in 1/10 mm.

For example: E3PEPL30S55C060 =• square plate 300 X 300 mm.• 6 mm thick VHDS rubber compound.• grade 55.

For other shapes, sizes or materials, ask us for details.

SHAPEDIMENSIONS

mmTHICKNESS

mm

SQUARE 300 X 300 2, 3, 4, 5, 6, 8, 10

DESCRIPTION

APPLICATIONS

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

}}}

128

129

E1E11S**E*E1E12S**E*E1E13S**E*

- VHDS elastomer able to carry loads under compression and traction.- pedestal, washer and shaft in stainless steel.

- protecting electronic equipment, navigation equipment, instrument panels, measuringinstruments, control panels on aircraft, road vehicles and railway trains.

Natural frequency :• axial : 20 to 25 Hz• radial : 20 to 25 Hz.Maximum permitted excitation at natural frequency ofsuspension : ± 0.5 mm.Amplification factor at resonance < 5.Operating temperature : - 54°C to + 150°C.Structural strength corresponds to a continuous accelera-tion of 10 g at maximum load.Maximum axial travel available for shock :E1E11 : + 4mm / E1E12 : + 5 mm / E1E13 : + 7 mm.Weight : E1E11 : 60 g / E1E12 : 120 g / E1E13 : 225 g.

DESCRIPTION

APPLICATIONS

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

ReferenceAxial static loads

in daNE1E11S38ECE1E11S42ECE1E11S48ECE1E11S55ECE1E11S63ECE1E11S72EC

1.60 - 2-801.80 - 3.202.10 - 3.802.50 - 4.503.00 - 5.303.50 - 6.20

E1E12S38EDE1E12S42EDE1E12S48EDE1E12S55EDE1E12S63EDE1E12S72ED

3.70 - 5.704.00 - 6.304.60 - 7.105.20 - 8.106.00 - 9.30

6.60 - 10.30E1E13S38EEE1E13S42EEE1E13S48EEE1E13S55EEE1E13S63EEE1E13S72EE

5.50 - 8.506.00 - 9.50

6.50 - 10.507.50 - 12.008.50 - 14.00

10.00 - 16.00

Natural frequency :20 to 25 Hz

4 mountingholes Ø D

J

A

B

Ø C

Ø E

Hunloadedapproxh approx.underload

A B

Gusable

1 tappedholefor screw Ø D

Reference Amm

Bmm

Ø Cmm Ø D Ø E

mmH

mmJ

mmØ dmm

hmm

Gmm

E1E11S ❑❑ EC 25.4 34 28.5 M5 23 29 14 4.3 28 10

E1E12S ❑❑ ED 34.9 44.4 40 M6 34.6 35.6 19 4.3 34.5 12

E1E13S ❑❑ EE 49.2 60.5 57 M8 45 47 23 5.3 45.5 16

130

E1E11S**AL*E1E12S**AL*E1E13S**AL*

- VHDS elastomer able to carry loads under compression and traction.- flange, washer and shaft in steel.

- protecting electronic equipment, navigation equipment, instrument panels, measuringinstruments, control panels on aircraft, road vehicles and railway trains.

Natural frequency :• axial : 20 to 25 Hz• radial : 20 to 25 Hz.Maximum permitted excitation at natural frequency ofsuspension : ± 0.5 mm.Amplification factor at resonance < 5.Operating temperature : - 54°C to + 150°C.Structural strength corresponds to a continuous accelera-tion of 10 g at maximum load.Maximum axial travel available for shocks :E1E11 : + 4mm / E1E12 : + 5 mm / E1E13 : + 7 mm.Weight : E1E11 : 25 g / E1E12 : 75 g / E1E13 : 225 g.

DESCRIPTION

APPLICATIONS

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

ReferenceAxial static loads

in daNE1E11S38ALE1E11S42ALE1E11S48ALE1E11S55ALE1E11S63ALE1E11S72AL

1.60 - 2-801.80 - 3.202.10 - 3.802.50 - 4.503.00 - 5.303.50 - 6.20

E1E12S38ALE1E12S42ALE1E12S48ALE1E12S55ALE1E12S63ALE1E12S72AL

3.70 - 5.704.00 - 6.304.60 - 7.105.20 - 8.106.00 - 9.30

6.60 - 10.30E1E13S38ALE1E13S42ALE1E13S48ALE1E13S55ALE1E13S63ALE1E13S72AL

5.50 - 8.506.00 - 9.50

6.50 - 10.507.50 - 12.008.50 - 14.00

10.00 - 16.00

Natural frequency :20 to 25 Hz

1 mounting holeØ D

Ø F

B

Ø C H unloadedapprox.

h under loadapprox.

e

A

G usable

4 mounting holesfor screw Ø d

A B

Reference Amm

Bmm

Ø Cmm

Ø Fmm

Gmm

Ø dmm

emm

Hmm

hmm

Ø Dmm

E1E11S ❑❑ AL 25.4 32 23 25.4 19 3.6 1.5 10 9 5.2

E1E12S ❑❑ AL 34.9 44.5 34.6 38.7 25.4 4.2 1.8 11.5 10.5 6.7

E1E13S ❑❑ AL 49.2 80.5 45 53 38 5.3 2.5 17.75 16.5 8.3

E1E21E1E22E1E23

- VHDS elastomer.- flange and shaft in 18/8 stainless steel.Two Ø K fail safe rings must be provided.

- protecting electronic equipment, navigation equipment, instrument panels, measuringinstruments, control panels on aircraft, road vehicles and railway trains.

Natural frequency :• axial : 15 to 25 Hz• radial : 20 to 35 Hz.Maximum permitted excitation at natural frequency ofsuspension : ± 0.5 mm.Amplification factor at resonance < 4.Operating temperature : - 54°C to + 150°C.Structural strength corresponds to a continuous accelera-tion of 10 g at maximum load.Maximum axial travel available for shock :E1E21 : ± 4 mm for f min / E1E22 : ± 4.5 mm for f min

± 6 mm for f max ± 6 mm for f max.Weight : E1E21 : 9 g / E1E22 : 25 g / E1E23 : 63 g.

DESCRIPTION

APPLICATIONS

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

131

Reference Axial static loadsin daN

Frequencyin Hz

Axial static loadsin daN

Frequencyin Hz

E1E21S38ALE1E21S63ALE1E21S77AL

0.15-0.400.30-0.900.40-1.20

15-200.10-0.150.20-0.300.26-0.40

20-25

E1E22S38ALE1E22S63ALE1E22S77AL

0.40-1.000.70-1.700.90-2.20

12-180.20-0.400.40-0.700.50-0.90

18-25

E1E23S42ALE1E23S77AL

0.40-1.201.00-2.90

10-15

Natural frequency :20 to 25 Hz

1 hole for screwØ D

A

LOAD

B

H ± unloadedmaxh under loadapprox.

e

A ± 0.15

Ø C minrecommend.

4 holesØ d

B

EReferenceA

mmB

mmØ Cmm

Ø DE

mmØ dmm

emm

Hmm

hmm

E1E21S ❑❑ AL 25.4 32 24 M4 19 3 0.8 12.5 11

E1E22S ❑❑ AL 34.9 44.5 28 M5 25.4 4 1.5 16.5 15

E1E23S ❑❑ AL 49.2 60.5 42 M6 36 5 2 22 20

E1E31E1E32

- VHDS elastomer.- flange and shaft in 18/8 stainless steel.Two Ø K fail safe rings must be provided.

- protecting electronic equipment, navigation equipment, instrument panels, measuringinstruments, control panels on aircraft, road vehicles and railway trains.

Natural frequency :• axial : 15 to 25 Hz• radial : 20 to 35 Hz.Maximum permitted excitation at natural frequency ofsuspension : ± 0.5 mm.Amplification factor at resonance < 4.Operating temperature : - 54°C to + 150°C.Structural strength corresponds to a continuous accelera-tion of 10 g with maximum load.Maximum axial travel available for shocks :E1E 31 : ± 4 mm for f min

± 6 mm for f max.E1E 32 : ± 4.5 mm for f min

± 6 mm for f max.Weight : E1E31 : 9 g / E1E32 : 25 g.

DESCRIPTION

APPLICATIONS

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

132

Reference Amm

Bmm

E1E31S ❑❑ AL 25.4 32

E1E32S ❑❑ AL 34.9 44.5

Ø Cmm

25

35

Ø D

M4

M5

Ø Emm

8.5

13

Fmm

10.5

14.5

Jmm

2

3

Kmm

dmm

25 3.6 3.2 5 4.5 0

35 4.3

emm

1

1.5 4.5 7 6.2 0

Hmm

1.75

2.5

hmm

3.5

5

Min Max

f (mm)

Min Max

j (mm)

Natural frequency :15 to 25 Hz

Reference Axial static loadsin daN

Frequencyin Hz

Axial static loadsin daN

Frequencyin Hz

E1E31S38ALE1E31S55ALE1E31S77AL

0.20-0.700.30-1.000.50-1.70 15-20

0.20-0.400.30-0.500.50-0.90 20-25

E1E32S38ALE1E32S55ALE1E32S77AL

0.30-1.100.60-1.800.80-2.60

0.30-0.700.60-1.100.80-1.60

Ø E

1 tapped holefor screw Ø D1 Ring Ø K

(or device)f

e

4 mounting holesfor screw Ø d

A

A

H unloadedapprox.h under loadapprox. Ø C

Ring Ø K minrecommended

B

F

j

i

E1E41E1E42E1E43

- VHDS elastomer able to carry loads under compression.- base and centre axis in stainless steel.

- protecting electronic equipment, navigation equipment, instrument panels, measuringinstruments, control panels on aircraft, road vehicles and railway trains.

Natural frequency :• axial and radial : 10 to 25 Hz.Maximum permitted excitation at natural frequency ofsuspension : ± 0.5 mm.Amplification factor at resonance < 4.Operating temperature : - 54°C to + 150°C.Structural strength corresponds to a continuousacceleration of 10 g at maximum load.Maximum axial travel available for shocks :E1E41 : 8.8 mm / E1E42, E1E43 : 12 mm.Weight : E1E41 : 22 g / E1E42 : 60 g / E1E43 : 96 g.

DESCRIPTION

APPLICATIONS

CHARACTERISTICS

SILICONE RUBBER / SPECIAL ELECTRONICS

133

Reference Amm

E1E41- ❑❑ EB 25.4

E1E42- ❑❑ EC 34.9

E1E43- ❑❑ ED 49.2

Bmm34 30,5

41.5

57

43

60.5

Ø Cmm Ø D

M4

M5

M6

Ø Emm10

12

21.5

Gmm

6

8

8

Hmm23

33

33

Nmm14.2

20

20

dmm

4.3

4.3

5.3

emm

0.8

1.5

2

fmm

14

18

16

hmm

21

31

31

Natural frequency :10 to 25 Hz

①

ReferenceAxial static loads

in daNE1E41-S38EBE1E41-S63EBE1E41-S77EB

1.20-2.102.00-3.803.00-5.20

E1E42-S38ECE1E42-S63ECE1E42-S77EC

1.75-3.303.20-5.904.40-8.30

E1E43-S38EDE1E43-S63EDE1E43-S77ED

3.10-5.505.40-10.807.50-13.60

① These isolators exist with an oval flange (FB).

Ø E1 tapped holefor screw Ø D

f

e

B

4 mounting holesfor screw Ø d

A

A

H unload. approx.

h under loadapprox

Ø C

Ø C

B

N

G usable

134

ALPHANUMERIC INDEX - VIBRACHOC RANGEReference Designation Page Reference Designation Page Reference Designation Page

E1C2321S01E1C2321S02

E1C2321-01E1C2321-02E1C2321-03

E1C2321-21E1C2321-22E1C2321-23

E1E 1S38ALE1E11S42ALE1E11S48ALE1E11S55ALE1E11S63ALE1E11S72AL

E1E12S38ALE1E12S42ALE1E12S48ALE1E12S55ALE1E12S63ALE1E12S72AL

E1E13S38ALE1E13S42ALE1E13S48ALE1E13S55ALE1E13S63ALE1E13S72AL

E1E11S38ECE1E11S42ECE1E11S48ECE1E11S55ECE1E11S63ECE1E11S72EC

E1E12S38EDE1E12S42EDE1E12S48EDE1E12S55EDE1E12S63EDE1E12S72ED

E1E13S38EEE1E13S42EEE1E13S48EEE1E13S55EEE1E13S63EE

Special packagingSpecial packaging

Special packagingSpecial packagingSpecial packaging

Special packagingSpecial packagingSpecial packaging

Special electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronicsSpecial electronicsSpecial electronics

123123

123123123

123123123

130130130130130130

130130130130130130

130130130130130130

129129129129129129

129129129129129129

129129129129129

E1E13S72EE

E1E21S38ALE1E21S63ALE1E21S77AL

E1E22S38ALE1E22S63ALE1E22S77AL

E1E23S42ALE1E23S77AL

E1E31S38ALE1E31S55ALE1E31S77AL

E1E32S38ALE1E32S55ALE1E32S77AL

E1E41S38EBE1E41S63EBE1E41S77EB

E1E42S38ECE1E42S63ECE1E42S77EC

E1E43S38EDE1E43S63EDE1E43S77ED

E1FH76-01E1FH76-02E1FH77-01E1FH78-01E1FH78-02E1FH781C01E1FH781S01E1FH866C01E1FH2507-01

E1N101-01E1N101-02E1N101-04E1N101-05E1N101-06

E1N104C45E1N104C60

Special electronics

Special electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronics

Special electronicsSpecial electronicsSpecial electronics

ARDAMPARDAMPARDAMPARDAMPARDAMPARDAMPARDAMPARDAMPARDAMP

VIBMARVIBMARVIBMARVIBMARVIBMAR

VIBMARVIBMAR

129

131131131

131131131

131131

132132132

132132132

133133133

133133133

133133133

119119119119119119119119119

116116116116116

117117

E1N104C75

E1N106C60E1N106C75

E1N2296-01E1N2296-02E1N2296-03E1N2296S01E1N2296S02E1N2296S03

E1M-3950-01E1M-3951-01E1M-3952-01E1M-3953-01E1M-3954-01E1M-3955-01E1M-3956-01E1M-3957-01E1M-3958-01

E1T2105S01E1T2105S02

E1T2105-21E1T2105-22E1T2105-23

E1T2105-41E1T2105-42E1T2105-43

E1V-3245-04E1V-3568-01E1V-3892-01E1V-3914-01E1V-3921-01E1V-3922-01E1V-3927-01E1V-3931-01E1V-3932-01E1V-3940-01E1V-4031-01E1V-4059-11

E3RP...E3PEPL...

E4330-F11

VIBMAR

VIBMARVIBMAR

VIBMARVIBMARVIBMARVIBMARVIBMARVIBMAR

‘X’ Type‘X’ Type‘X’ Type‘X’ Type‘X’ Type‘X’ Type‘X’ Type‘X’ Type‘X’ Type

Special packagingSpecial packaging

Special packagingSpecial packagingSpecial packaging

Special packagingSpecial packagingSpecial packaging

Bump stopBump stopBump stopBump stopBump stopBump stopBump stopBump stopBump stopBump stopBump stopBump stop

Special electronicsSpecial electronics

Mounting

117

117117

115115115115115115

118118118118118118118118118

124124

124124124

124124124

888888888888888888888888

126-127128

96

135

ELASTOMER RANGEBARRY CONTROLS

SLM pneumatic mounts are made from synthetic rubber and arelaterally reinforced with steel springs.

The base plate is bored with 4 smooth holes to allow a possible fixingon the ground and the valve allows to inflate the mount in the same wayas an automobile tyre.

• Elastomer body (temperature range -30°C à +180°C) resistant tooils, the majority of solvents and natural ageing.

• The top and bottom plates are available in both steel and aluminium.

136

PNEUMATIC MOUNTS SLM

DESCRIPTION

OPERATION

Natural frequency:3 to 5 Hz

(1)

APPLICATIONS• Industrial plant, compressors, conveyors, vacuum pumps, generators,

air-conditioners, diesel engines, ventilators, presses with fast cycle,machine tools.

• Metrology: measuring apparatus sensitive to the external distur-bances, optical instruments, etc.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

The design of SLM mounts gives the following basics characteristics:

• In the event of loss of pressure, the machine will rest on the elastomerbody. The load capacity of the mounting remains unchanged.

• The ratio of horizontal rigidity and vertical rigidity of the SLM is 1:1,which allows excellent stability.

Advantages:

• Eight sizes, capacity range of 10 daN to 10000 daN.• Allow you to level the machine gradually while varying the air

pressure.• Possibility of varying the natural frequency, by varying the air

pressure.

73.2105.2126.7171.2245.4338.1468.4609.6

* Barry Controls references are given as an indication..

Nominalstatic load

daN

76.2106.4130.0174.8254.0342.9469.9609.6

Amm

60.488.9

108.0152.4215.9304.8406.4508.0

Bmm

M10M12M12M12M16M16M24M24

Ø C

1214141419192222

Ø Emm

Ø Fmm

63.562.288.988.988.988.988.988.9

Gmm

25.444.454.176.2

138.2190.5266.7400.1

Ø Hmm

12.712.714.214.214.214.214.214.2

Jmm

3.23.23.23.24.84.86.46.4

Tmm

0.50.71.52.56

11.826.045.0

Weig.kg

SLM-M1A

SLM-M3A

SLM-M6A

SLM-M12A

SLM-M24A

SLM-M48A

SLM-M96A

SLM-M192A

11 - 4534 - 13668 - 272

136 - 545272 - 1090545 - 2180

1090 - 43602180 - 8720

530904 01530904 02530904 03530904 04530904 05530904 06530904 07530904 08

BarryControls *reference

Paulstrareference

DIMENSIONS AND OPERATING CHARACTERISTICS

See current price list for availability of items. 1 kg _~ 1 daN

Ø C

B

A

A

BØ E

Ø F

Ø H

G

JT

0

6

3

4

5

5

4

3

2

120 40 60 80 100 200 400 600 1000 2000 4000 6000 10000

P. b

ar

daN

Hz

5309

04 0

1

5309

04 0

253

0904

03

5309

04 0

4

5309

04 0

5

5309

04 0

6

5309

04 0

7

5309

04 0

8

PRESSURE OF INFLATION FOR STATIC HEAD ANDNATURAL FREQUENCY

1377

138

Recommendations:

• The machine must rest on the supports before they are inflated to the level indicated ondimension " G ".

• Before any diassembling, the SLM mount must be deflated.• The surface of the machine must completely cover the surface (Ø F) of the mount. If it is not

possible, use a separate plate (thickness between 5 and 10 mm, according to the load) anddiameter equal to F + 10 mm. This is to obtain a base on the full surface. It is required for assembly and in the event of an air leakage.

• If necessary, it is possible to fix the supports using the four smooth holes on the bed plate.• Make sure care that the valves are protected.• Never overload the mounts. Always use the recommended load capabilities.

ASSEMBLY

Ø F

G

Correct assembly

Uncorrect assemblies

1 - AV mount 2 - Install the machinery 3 - Inflate the mount

Mount inflated before Floor not level Over inflated mountfixing the machinery

The 22000 mount is made of two parts of elastomer bonded to a centraltube.

• Interior reinforced: cylindrical tube.• Elastomer: chloroprene. Range of five different stiffnesses.

22000 MOUNT

The design of the 22000 mount gives the following basic characte-ristics.

• Elastomer element resistant to oils, supporting axial and radial loadings.

• Axial to radial stiffness of 1 : 1.• Absorb vibrations and reduce noise in all directions.

Advantages :• Good isolation against structural noises.• Chloroprene resistant to oils.• Simple and economical.• Simple to fix.• Five sizes for a load capacity under axial pressure from 15 to 2100 kg

and under radial pressure until 650 kg.• Anti-rebound effect when it is assembled with a washer.

DESCRIPTION

OPERATION

APPLICATIONS22000 mounts can be used in static or mobile applications, such as:pumps, compressors, generators, electronic equipment, HVACequipment, engines with internal combustion, transmissions, plantcabs, radiators, etc.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

(1) Natural frequency:8 to 18 Hz

139

20.1

33

40.1

58.4

64.8

19

31.7

38.1

57.1

63.5

Ø C2

mmØ C1

mmØ Bmm

Ø Amm

33.2

47.7

64.8

88.9

123.9

10.4

13.5

16.7

23.8

27

530903 11 / 15

530903 21 / 25

530903 31 / 35

530903 41 / 45

530903 51 / 55

22001-11 / 15

22002-11 / 15

22003-11 / 15

22004-11 / 15

22005-11 / 15

12.3

19.8

22.8

25.4

31.7

9.5

14

22

28.5

32

43

142

313

670

1306

1

1.5

2.3

3

3

31.7

49.2

61.7

73.1

85.8

9.5

12.5

19

25.5

25.5

Fmm

E2mm

DIMENSIONS CHARACTERISTICS

Weightg

Dmm

E1mm

Rmm

BarryControls*reference

Paulstrareference

Supportstructure

Snubbingwasher

Isolatedequipment

Snubbingwasher

D

Ø A

E1

Ø B Ø B

R

E2

D

R

Ø C2

Ø C1 FFØ C1

Ø C2

C1: Ø mounting holeC2: Ø elastomerF: Free heightR: Radius required

140

Isolatedequipment

Supportstructure

See current price list for availability of items. 1 kg � 1 daN

Washer

530903 11 / 15530903 21 / 25530903 31 / 35530903 41 / 45530903 51 / 55

PAULSTRAReference*

39.654.171.398.5

133.3

Ø Amm

10.313.516.723.827.0

Ø Bmm

2.23.44.76.39.5

Cmm

2454

140368991

Weightg

* References given as an indication.

E1 type assembly E2 type assembly

Washers are recommended for the assembly of the mount.They make it possible to carry out debouncing.

Ø A

C

Ø B

141

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

5309

03-1

4

5309

03-1

3

530903-12

530903-11

5309

03-1

5

Support structure E2Load per mount

913182227

RadialdaN

AxialdaN

Paulstrareference

BarryControls*reference Axial

daNRadialdaN

FoHz

E1mm

Support structure E1Load per mount

22001-1122001-1222001-1322001-1422001-15

22002-1122002-1222002-1322002-1422002-15

22003-1122003-1222003-1322003-1422003-15

22004-1122004-1222004-1322004-1422004-15

22005-1122005-1222005-1322005-1422005-15

184063

113136

913182227

5979

109172286

22294075

127

95159222390604

4063

102175313

122231350531954

61104156268443

518877

117216092072

109154277404640

15 9.5

12 14

11 22

10 28.5

10 32

FoHz

E2mm

184063

113136

275472

118172

18365681

127

4068

102147227

314772

111163

68136181227272

50100136181263

136227318409545

68100136213300

15 9.5

15 12.5

15 25.5

15 25.5

15 25.5

530903 11530903 12530903 13530903 14530903 15

530903 21530903 22530903 23530903 24530903 25

530903 31530903 32530903 33530903 34530903 35

530903 41530903 42530903 43530903 44530903 45

530903 51530903 52530903 53530903 54530903 55

OPERATING CHARACTERISTICS

The maximum loadings depend on the compression of the assembly by comparing thethicknesses E1 and E2.

See current price list for availability of items. 1 kg � 1 daN

Assembly type E1 and E2

530903 41530903 42530903 43

5309

03 4

4

5309

03 4

5

530903 41530903 42

530903 43530903 44

5309

03 4

5

530903 51530903 52530903 53

5309

03 5

4

5309

03 5

5

530903 51530903 52530903 53

5309

03 5

4

5309

03 5

5

530903 31530903 32

5309

03 3

3

5309

03 3

4

5309

03 3

5

530903 31530903 32530903 3353

0903

34

5309

03 3

5

5309

03 2

5

5309

03 2

4

5309

03 2

3530903 22

530903 21530903 21530903 22530903 23

5309

03 2

4

5309

03 2

5

Assembly type E1 Assembly type E2

142

The CUPMOUNT is made of rubber bonded to two metal reinfor-cements of truncated form.

• Interior reinforcement with tapped hole.• External reinforcements with square base (4 holes).

CUPMOUNT

The design of the CUPMOUNT gives the following basic characteristics:

• The ratio of radial and axial rigidity of the elements is 1/1, whichallows excellent stability.

Advantages:• Four models, load capacity of 1 to 1000 daN.• Support iso-stiffness into axial and radial.• Can be assembled multidirectional. Effective in compression, traction

and shear• Chloroprene resistant to oils.• Easy and fast to install.

DESCRIPTION

OPERATION

APPLICATIONS

Natural frequency:25 to 35 Hz

Engines, pumps, air conditioning, ventilators, transformers...The CUPMOUNT can also be used for suspended ceilings and formobile applications

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

(1)

143

530906 31530906 32530906 33530906 34

530906 21530906 22530906 23530906 24530906 25530906 26530906 41530906 42530906 43530906 44

Maximum loaddaN

Static applicationMobile application

Paulstrareference

Barry Controls*reference

C1010C1015C1035C1050

6.5142645

C4100C4135C4200C4300

C2020C2040C2060C2075C2090C2125

C3125C3175C3300C3500

6.5142645

132434607292

264868

120144184

7011816025090

125165330

140236320500180250330660

530906 11530906 12530906 13530906 14

49.563.5

143 108

Barry Controls*reference

Paulstrareference

DIMENSIONS CHARACTERISTICS

OPERATING CHARACTERISTICS

Reference 530906

H

A

A

B

B

Ø D

Ø C

GI

TØ E

5876

168124

6075

175133

0.20.44.51.8

C1000

C2000

C3000

C4000

Weightgr

Bmm

Ø Cmm

5.26.4

13.511.9

Ø Dmm

M6M10M16M16

Ø E

20306519

Gmm

28389063

Hmm

18255938

Imm

1.62.34.74

Tmm

530906 11/14530906 21/26530906 31/34530906 41/44

* Barry Controls references are given as an indication.

Amm

* Barry Controls references are given as an indication. 1 kg _~ 1 daN

144

mm

1

54

3

2

0.2

0.40.50.6

0.8

0.3

0 2 3 4 5 6 8 10 20 30 40 8060 100 200 300

15

20

30

40

Hz

daN

Nat

ural

fre

que

ncy

530906 11

530906 12

530906 13

5309

06 1

4

1

54

3

2

0.2

0.40.50.6

0.8

0.3

0 4 5 6 8 10 20 30 40 60 80100 200 300 400 600 1000

15

20

30

40

Hz

mm

daN

Nat

ural

fre

que

ncy

530906 21

530906 22

530906 23

530906 24

530906 25

530906 26

mm

1

456

810

3

2

0.2

0.40.50.6

0.8

0.3

0 20 30 40 60 10080 200 300 400 600 1000 2000 3000 5000

15

10

20

30

40

Hz

daN

Nat

ural

fre

que

ncy

530906 31

530906 32

530906 33

530906 34

mm

1

456

810

3

2

0.2

0.40.50.6

0.8

0.3

0 20 30 40 60 10080 200 300 400 600 1000 2000 3000 5000

15

10

20

30

40

Hz

daN

Nat

ural

fre

que

ncy

530906 41

530906 42

530906 43

530906 44

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

Reference 530906 11/14

Reference 530906 21/26

Reference 530906 31/34

Reference 530906 41/44

145

All elements made of elastomer.Elastomer is compatible with the majority of the industrial environ-ments and has an operating temperature range of -40°C to +83°C

RINGS AND BUSHINGS

A ring assembled with the associated bushing constitutes a flexibleinterface and a simple solution to decrease noise and vibrations.

• These supports can be installed in parallel for a greater load capacityand may also be stacked in series when greater deflection capacityis required.

Advantages:• Highly efficient noise reduction.• Absorb schock and vibrations.• Simple and economic.• Four models in four stifnesses for load capacities going from 0.5 to

160 kg per isolator.

DESCRIPTION

OPERATION

APPLICATIONS

• Office machines, motors, fans, HVAC equipment, electronics equip-ment, telecommunication equipment.

(1) Natural frequencies with max/min loads, see : OPERATING CHARACTERISTICS.

Natural frequency:6 to 28 Hz

(1)

146

DIMENSIONS CHARACTERISTICS

A A

A

Ø 31.820.6

Ø 15.9

Ø 55.6

Ø 35

3.3

A

A

Ø 76.2

Ø 31.8

11.9

21.5 10.5

5.6

45.2

Ø 7

3

Ø 1

5.9

2

2

Ø 1

1.5

Ø 2

0.6

6.4

2

2

Ø 2

0.6

14.3

6.6

Ø 1

1.9

Ø 6

.4

2.4

2.4

8.4

16.7

Ø 1

7.5

Ø 9

.5

Ø 3

4.9

Ø 1

9

Ø 3

4.9

2.4

2.4

7.7

4

412

.7

Ø 3

1.8

Ø 4

8.4

2.49.5

22.2

Ø 1

7.5

Ø 1

4.2

Ø 4

8.4

Rings Bushings

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Section A - A

Section A - A

147

Load range

Max. (daN)Min. (daN)Max. (daN)

Load range

530907 33 / 530908 33WR3-030 / WB3-030

GroupPaulstra reference

Barry Controls reference *

GroupPaulstra reference

Barry Controls reference * Min. (daN)

530907 13 / 530908 13WR1-030 / WB1-030

0.4 1.8

530907 14 / 530908 14WR1-040 / WB1-040

0.9 2.7

530907 15 / 530908 15WR1-050 / WB1-050

1.4 3.6

530907 16 / 530908 16WR1-060 / WB1-060

2.3 5.4

4.7

9

13.6

18

27

50

61

73

16

23

27

74

55

73

114

159

530907 34 / 530908 34WR3-040 / WB3-040

530907 35 / 530908 35WR3-050 / WB3-050

530907 36 / 530908 36WR3-060 / WB3-060

530907 43 / 530908 43WR4-030 / WB4-030

530907 44 / 53090844WR4-040 / WB4-040

530907 45 / 530908 45WR4-050 / WB4-050

530907 46 / 530908 46WR4-060 / WB4-060

530907 63 / 530908 63WR6-030 / WB6-030

530907 64 / 530908 64WR6-040 / WB6-040

530907 65 / 530908 65WR6-050 / WB6-050

530907 66 / 530908 66WR6-060 / WB6-060

2.7 9

3.2 10.5

4.5 11.4

6.8 16

Fig

1

1

1

1

3

3

3

3

Fig

2

2

2

2

4

4

4

4

OPERATING CHARACTERISTICS

LOAD/DEFLECTION CURVES IN AXIAL COMPRESSION

530

907

16

530

907

15

530907 14

530907 13 530907 33

530

907

34 530

907

36 5

3090

7 35

530907 63 530907 64 530

907

65

530

907

66

530

907

46 5

3090

7 45

530

907

44

530907 43

* Barry Controls references are given as an indication. 1 kg _~ 1 daN

148

A flexible fixing resistant to oils, the majority of solvents and ageing.

FLEX-LOC

The design of the FLEX-LOC mount gives the following basiccharacteristics:

• The rubber works in:- compression (axial),- shear (radial),- compression/shear according to the fixing method.

Advantages :• 80 % reduction of vibrational energy transmitted from normal struc-

tural frequencies.• Simple and economical.• Simple to fix.• Light weight.

DESCRIPTION

OPERATION

APPLICATIONS

FLEX-LOC are suitable for the fixing of sheets, frameworks, engines,ventilators, electronic equipment, computers, etc.

149

Nut

Q3Q4Q5Q6Q8

Barry Controlsreference *

Paulstrareference

530909 03530909 04530909 05530909 06530909 07

ClearancecoleØ B

Platethickness G

mm

7,2-7,59,3-9,6

10,2-10,512,7-13,016,5-16,8

0.6-2.50.8-3.30.8-4.31.5-5.01.5-6.5

INm

II ou IIINm

Torque range

Compression/shear

Compression

Static load (daN)

Shear

II ou IIII

0.50.61.03.54.0

0.40.50.60.91.8

111.535

57

101428

2.53.557

14

Q3

Q4

Q5

Q6

Q8

BarryControls

reference *

Paulstrareference

530909 03530909 04530909 05530909 06530909 07

DIMENSIONS CHARACTERISTICS

OPERATING CHARACTERISTICS

M3M4M5M6M8

912151824

Ø Amm

7.29.3

10.212.716.5

Ø Bmm

3.44.45.46.48.4

Ø Cmm

911.514.51722

Dmm

2.533.545

Emm

810.5131519.5

Fmm

* Barry Controls references are given as an indication. 1 kg _~ 1 daN

* Barry Controls references are given as an indication.

F

Ø C

Ø B

D

E

Ø A

Ø B

G

I II III

150

Load rangedaN

7.5 - 7515 - 15025 - 25040 - 40060 - 600

GB530-NR1GB530-NR2GB530-NR3GB530-NR4GB530-NR5

Barry Controlsreference *

Paulstrareference

530901 21 00530901 21 10530901 21 20530901 21 30530901 21 40

The GB530 comprises of one part in elastomer bonded to a base plateand a tapped steel core (a non magnetic version is also available).

Advantages :• Can provide high deflection under shocks.• Long life.• Low natural frequency (5 Hz in axial).• Low amplification at resonance.

These are specific mounts created for the naval industry: on boardelectronics, radars, special weapons equipment.

DESCRIPTION

APPLICATIONS

DIMENSIONS CHARACTERISTICS

OPERATING CHARACTERISTICS

GB530SPECIAL MARINE

Natural frequency:5 Hz

(1)

* Barry Controls references are given as an indication.

150

120

200

120

25 38

140

200

140

38

Dimensions are given in mm

M20 (oradapted M12)

4 holesØ 13

Stainless steelcaptivation strap

(on demand)

Temperature range: - 30°C to + 70°C.Weight: 3 - 4 kg.

(1) Natural frequencies with max/min loads, see : OPERATINGCHARACTERISTICS.

1 kg _~ 1 daN

151

ALPHANUMERIC INDEX - BARRY CONTROLS RANGEReference Designation Page Reference Designation Page Reference Designation Page

530901 21 00530901 21 00530901 21 00530901 21 00530901 21 00

530903 11/15530903 21/25530903 31/35530903 41/45530903 51/55

530904 01530904 02530904 03530904 04530904 05530904 06530904 07530904 08

530906 11/14

GB530GB530GB530GB530GB530

22000 mount22000 mount22000 mount22000 mount22000 mount

SLM mountSLM mountSLM mountSLM mountSLM mountSLM mountSLM mountSLM mount

Cupmount

151151151151151

140-141140-141140-141140-141140-141

137137137137137137137137

144

530906 21/26530906 31/34530906 41/44

530907 13530907 14530907 15530907 16530907 33530907 34530907 35530907 36530907 43530907 44530907 45530907 46530907 63530907 64530907 65530907 66

530908 13

CupmountCupmountCupmount

RingRingRingRingRingRingRingRingRingRingRingRingRingRingRingRing

Bushing

144144144

148148148148148148148148148148148148148148148148

148

530908 14530908 15530908 16530908 33530908 34530908 35530908 36530908 43530908 44530908 45530908 46530908 63530908 64530908 65530908 66

530909 03530909 04530909 05530909 06530909 07

BushingBushingBushingBushingBushingBushingBushingBushingBushingBushingBushingBushingBushingBushingBushing

Flex-LocFlex-LocFlex-LocFlex-LocFlex-Loc

148148148148148148148148148148148148148148148

150150150150150

152

OTHER PAULSTRA DOCUMENTATIONAvailable upon request

AEROSPACEAND DEFENCECATALOG

FLEXIBLECOUPLINGSCATALOG

METALMOUNTINGSCATALOG

FLEXIBLEBUSHESCATALOG

MARINE / NAVYLEAFLET

INDUSTRIALVEHICLESLEAFLET

RAILWAYCATALOG

OFFSHORECATALOG

POWERGENERATIONLEAFLET