housing designs & seal options.pdf
DESCRIPTION
Seals EngineeringTRANSCRIPT
Housing designs & seal optionsCylinder housings and seal optionsThe following diagrams illustrate how Hallite’s wide range of products can be applied to a selec-tion of some of the most popular cylinder designs servicing the world’s fluid power industry.
The diagrams show different gland and piston arrangements to illustrate alternative sealing meth-ods currently in use and a suitable Hallite product.
If the application which you are interested in is of a non-standard nature please contact Hallite’stechnical department.
Gland PistonHeavyduty
Type51, 52
Type13, 14
Type18
Type58
Heavyduty
Heavyduty
Heavyduty
Heavyduty
Heavyduty
Mediumduty
Mediumduty
Type730, 735
Type621, 631652, 653
Type753
Type601, 605
Hallite Seals
Housing designs & seal options
Gland PistonMedium
dutyMedium
duty
Mediumduty
Mediumduty
Mediumduty
Mediumduty
Light to mediumduty
Light to mediumduty
High speed light duty
Type601, 606
Type601, 605
Type53
Type605
Type511, 512
Type513
Type754, 755, 770
Type616, 16
Type54
High speed light duty
Type16
Hallite Seals
Hallite Seals’ product data sheets give information indicating the allowableextrusion gap a seal can see at pressure during its working life. The extrusion gap can be calculated using the tolerance build ups within thecylinder and any dilation that may occur under pressure.
Maximum extrusion gap = F max (see drawing below).F max is the maximum extrusion gap for the seal
Minimum metal to metal clearance = F min (see drawing below).
F min for cylinders with minimal side loading should be > 0.1mm (0.004”).
RodsMaximum extrusion gap F max = (ØD3 max + ØD2 max) - S min - Ød1 min
2
Minimum metal to metal clearance (extrusion gap) F min = S min -(ØD2 max - ØD3 min)
2
Rod Bearing Piston Bearing
PistonsMaximum extrusion gapF max = ØD1 max - S min - (Ød3 min + Ød2 min) + dilation
2Minimum metal to metal clearance (extrusion gap) F min = S min - (Ød3 max - Ød2 min)
2
Calculate both F max and F min.Ensure the F min is greater than 0.1mm (0.004”) and F max is less than the maximum extrusion gap stated on the seal data sheet at the application’s working pressure.
For built-in metal bearings, the extrusion gap calculation is simpler.
For F max:
Rod = ØD3 max - Ød1 min + dilationPiston = ØD1 max - Ød3 min + dilation
F min must be zero
Extrusion is closely linked to pressureand temperature. In general, thebest seal performance and life isprovided by specifying the smallestpossible extrusion gap.
The figures shown for the extrusiongap within the operating conditionsof Hallite’s product data sheets,relate to the maximum permissible,worst case situation with the gap allon one side.
1.2
1.0
0.8
0.6
0.4
0.2
0
0 100 200 300 400 500 600 700
Hallite 735
800
Hallite 754Hallite 755
Type 735, 754, 755
Pressure bar
Ext
rusi
on g
ap (
mm
)
Pressure bar
Ext
rusi
on g
ap (
mm
)
Type 15, 16, 18
0 100 200 300 400 500 600 700 800
1.2
1.0
0.8
0.6
0.4
0.2
0
Hallite 601Hallite 605Hallite 606Hallite 610Hallite 659
Hallite 621Hallite 631Hallite 652
Pressure bar
Ext
rusi
on g
ap (
mm
)
Type 601, 605, 606, 610, 621, 631, 652, 659
0 100 200 300 400 500 600 700 800
1.2
1.0
0.8
0.6
0.4
0.2
0
Hallite 07 Hallite 12Hallite 09 Hallite 13Hallite 11 Hallite 14
Pressure bar
Ext
rusi
on g
ap (
mm
)
Vee pack sets
Note: Piston is not concentric with cylinder bore, because of clearances. Note: Rod is not concentric with gland, because of clearances.
Glandbore
diameterØD
Roddiameter
Ød
Bearinghousingdiameter
ØD
F min
F max
S
Rod
Housing
Rod sealgroove
2
1
3
F max
Bearinghousingdiameter
Ød
Pistondiameter
ØD
SBearingsection
F min
Borediameter
ØD
Cylinder
Piston
Piston sealgroove
3
2
1
(shown exaggerated) (shown exaggerated)
1.2
1.0
0.8
0.6
0.4
0.2
Hallite 16
Hallite 15Hallite 18
0 100 200 300 400 500 600 700 8000
Housing DesignHallite Seals
Our quality control methods for material and manufacturingprocesses ensure that all seals leaving our factories are in acondition capable of giving a long and reliable service life.We have found from many years experience, thatpremature seal failure can be avoided if the followingrecommendations are considered at the design andmanufacturing stage of the cylinder:
1. Specify piston and gland bearings which areadequately proportioned to support the cylinder loads. As a result of mounting misalignments and / or theworking action of the cylinder, piston and gland bearingswill be subjected to side-loading, causing damage to therod or the tube surface and hence the seal, if thebearings are inadequate.
2. Ensure that seals are stored distortion free in a cool, dryand dark place prior to fitting.
3. Check that the seal housing is free from damage likelyto harm the seal. Remove all sharp edges and burrs frommetal parts, paying particular attention to ports, groovesand threads over or through which the seal passes duringassembly.
4. Clean all seal housing areas, ensuring that all metallicparticles and other contaminants have been removed.Check that other surfaces adjacent to the passage of theseal on fitting are also free of dirt, swarf or othercontaminants. Check that both static and dynamic
housing surface finishes meet specifications.
5. Where the difference between a thread diameter overwhich the seal must pass and the seal diameter is small,use some form of protection over the thread, such as afitting sleeve made of hard plastic.
6. Check that the seal is of the correct type, part numberand size, and that the specified material is correct. Ifthere is any doubt regarding the material contact yourlocal Hallite sales office.
7. Lubricate all seals and metal components liberally withclean operating fluid or a compatible grease prior toassembly. N.B. Silicone grease should not be used innormal hydraulic applications.
8. Where seals fitted to sub-assemblies, such as pistons,are awaiting further fitting operations, ensure that theseals are not subjected to any misaligned or localisedloading which will cause local deformation. Ensure thatsub-assemblies remain clean.
9. The use of metal levers is not recommended but shouldthey be used it is imperative that they are completelysmooth and free from nicks and burrs. When using themensure that the metal surfaces adjacent to the seal arenot damaged.
10. Flush the hydraulic system thoroughly beforeconnecting the cylinder to it.
Use and fitting of seals
1 136
64 45 4 36
33
5
3 3
Typical hydraulic cylinder layout showing installation features to be considered for satisfactory seal life.
Hallite Seals
Storage conditions
Most polymeric items including vulcanized rubber andother elastomers tend to change their properties duringstorage and may become unserviceable. This may bedue to hardening, softening, cracking, crazing or otherdegradation and may be the result of oxygen, ozone,light, heat and/or humidity.
The following recommendations indicate the most suit-able conditions for storing elastomeric items, whether asa single item or composite product.
1. TemperatureStorage temperatures should not exceed 75 F. Lowtemperatures are not permanently harmful provided therubber items are handled carefully and not distorted.When taken from low temperatures items should beraised to approximatley 85 F before they are used.
2. HumidityOptimum humidity is about 65% in a draft-free atmos-phere.
3. LightProtection from direct sunlight and strong artificial lightwith a high ultraviolet content is important. Unlesspacked in opaque containers, it is advisable to coverwindows with red or orange screens or coatings.
4. Oxygen and OzoneElastomeric items should be protected from circulating airwherever possible. As ozone is particularly harmful to rub-ber, storage rooms should be free from equipment thatmay give rise to electric sparks or discharge. Wrapping,storage in airtight containers or other suitable meansshould be used for vulcanised rubber items.
5. DeformationWhere possible, rubber items should be stored in arelaxed position, free from tension or compression. Layingthe item flat and avoiding suspension or crushing keeps itfree from strain and minimises deformation.
6. Contact with Liquid and Semi-Solid MaterialContact with liquids and semi-solid materials, particularlysolvents, such as oils or greases should be avoided unlessso packed by the manufacturer.
7. Contact with MetalsMetals such as manganese, iron and copper, or copperalloys can have a harmful effect on rubber. A layer ofpaper, polyethylene or cellophane will keep these sepa-rated.
8. Contact with Non-MetalsContact with other rubbers or creosotes should be avoid-ed.
9. Stock RotationElastomers should be stored for as short a period as possi-ble, and strict stock rotation should be practiced.
10. CleaningOrganic solvents such as trichloroethylene, carbon tetra-chloride and petroleum are the most harmful agents.Soap and water and methylated spirits are the leastharmful, and all parts should be dried at room tempera-ture before use.
11. Shelf LifeThe table shows the storage life of seal componentsmade from the more common materials under idealconditions. Storing under less than ideal conditions willreduce the life.
Careful inspection of the following should be madebefore installation after storage:
a. Mechanical damageb. Permanent distortionc. Cracks or surface crazingd. Tackiness or surface softening/hardening
The appearance of 'bloom' is relatively unimportant,except in certain non-toxic applications. Thin components (less than 1/16in/1.6mm) tend to bemore critically affected.
Storage of Seals
Hallite Seals
BASE POLYMER(ISO DESIGATION)
PRIMARYSTORAGEPERIOD (YEARS)
EXTENSION OFSTORAGE PERIOD
AFTER RE-INSPECTION
(YEARS)
FLUOROCARBON (FKM)
ETHYLENE PROPYLENE (EPDM)
NITRILE (NBR)
HYTHANE (EU)
THERMOPLASTIC POLYESTER ELASTOMER
POLYUERETHANE (AU)
ENGINEERING THERMO PLASTICS:
ACETAL (POM)
POLYAMIDE (PA)
GLASSFILLED NYLON (PA)
PTFE
POLYPHENYLENE SULFIDE (PPS)
ENGINEERING THERMOSETS:
TYPE 506 BEARING STRIP
10
7
5
UNLIMITED
UNLIMITED
5
3
2
Materials & fluid compatibilityMax. continuous working temperatures C° and temperature ranges for materials, within fluid power fluids
* Denotes that values vary greatly for individual elastomers within this group NS Denotes that the elastomer is not suitableThe work of the BFPA technical working group ‘TC16/WG8’in the compilation of this table is acknowledged.
100
160
NS
*130
NS
160
100
100
100
100
100
160
160
100
160
Temperature rangefor fluid °C
+ 100- 30
+ 200- 20
+ 120- 50
+ 200- 55
+ 130- 30
+ 120- 40
+300 +200+40 -20
+ 100- 30
+ 100- 40
+ 100- 40
+ 100- 40
+ 100- 45
+ 200- 40
+ 200- 200
+ 100- 50
+ 250- 65
+ 120- 30
+ 250- 20
+ 150- 50
+ 250- 55
+ 150- 30
+ 140- 40
+ 110- 30
+ 110- 45
+ 120- 40
+ 120- 40
+ 120- 45
+ 200- 40
+ 200- 200
+ 130- 200
+ 300- 65
100
150
NS
*130
NS
150
100
100
100
100
100
150
150
100
150
90
150
NS
*110
NS
150
100
100
100
100
100
150
150
100
150
100
100
NS
*100
NS
100
100
100
100
100
100
100
100
100
100
100
100
NS
100
100
NS
100
100
100
100
100
100
100
100
100
100
*150
NS
NS
*NS
150
60
60
60
100
100
150
150
100
150
*150
NS
NS
*NS
150
60
60
60
100
100
150
150
100
150
*150
NS
NS
*NS
150
60
60
60
100
100
150
150
100
150
NBR 70 IRHDNBR 90 IRHD
Nitrile (medium)
+ 150- 40
+ 150- 40
+ 100- 30
+ 160- 50
+ 100- 30
100
200
120
*130
120
200
100
100
100
100
100
200
200
100
250
+ 250- 50
FKM 75 IRHDFKM 90 IRHD
Fluoro-elastomer
EPDM 70 IRHDEPDM 80 IRHD
VMQ 70 IRHDSilicone
HNBR 75 IRHDHydrogenated
nitrile
IIRButyl
FFKMPerfluoro-elastomer
AU Polyester PU
EUPolyether PU
Polyesterelastomer
PAPolyamide
POMAcetal
PPS Polyphenylene
sulphide
PTFEPolytetra-
fluoroethylene
Thermosettingpolyester resin
PEEKPolyether-
etherketone
FuelsGreasesFluids based on mineral oils
SERVICE FLUIDS
Maximum continuous service temperature in fluids °C
Hallite Seals
Materials & fluid compatibilityMax. continuous working temperatures C° and temperature ranges for materials, within fluid power fluids
+ 150- 50
In view of the variations in formulation of both oils and polymers, the compatibility of all combinations should be confirmed by testing and field service performance for each application.(1) Temperature range for water in fluid power applications.
60
80
NS
NS
80
NS
100
60
60
60
100
100
100
100
100
100
100
150
NS
*130
NS
150
100
100
100
100
100
150
150
100
150
+ 100- 50
60
60
NS
NS
60
NS
60
40
60
60
60
60
60
60
60
60
60
60
NS
NS
60
NS
60
40
60
60
60
60
60
60
60
60
60
NS
60
NS
60
60
60
NS
40
NS
60
60
60
60
40
60
NS
NS
80
NS
NS
100
100
NS
NS
NS
100
100
100
100
100
100
NS
150
80
NS
NS
120
150
NS
NS
NS
100
100
150
150
100
150
60
60
NS
NS
60
NS
60
60
60
60
60
60
60
60
60
60
60
100
NS
NS
60
NS
100
60
80
80
100
100
100
100
100
100
80
100
120
100
130
120
150
40
60
60
60
80
150
150
80
150
100
200
120
200
130
120
200
40
80
80
80
80
200
200
100
200
NS
NS
120
80
NS
80
130
NS
NS
NS
80
80
130
130
NS
130
Fire-resistant hydraulic fluids
SERVICE FLUIDS
Environmentally acceptable fluids Other service fluids
+ 60+ 5
+ 60+ 5
+ 150- 0
+ 60- 30
+ 100- 50
+ 60- 10
+ 100- 40
+ 60 (1)+ 5.......
+ 200+ 2
+ 130- 50
Maximum continuous service temperature in fluids °C
Hallite Seals
Surface roughness has a very important influence on thelife and leakage performance of a recipricating sealingsystem.
Note : The vertical scale is 40 times the Horizontal scale
Definitions
Many parameters can be used to describe surface finish-es and these are explained in ISO 4287 and ISO 4288.Those in most common use in the fluid power industryinclude:-
Ra, which is defined as the arithmetical mean deviationof the assessed profile. The inch equivalent parameter isCLA (centre line average). A surface finish of 0.4 µm Ra isexactly equivalent to 16 µin CLA.Rt, which is the total height of the profile.There is nomathematical relationship between Ra and Rt.Rq, which is the root mean square deviation of theassessed profile. The equivalent term in inches is RMS(Root Mean Square). The Rq (RMS) of a surface isapproximatly 10% greater than the Ra (CLA) value.
The surface roughness parameters given above do notgive any indication of the sharpness of the surface. Thepeaks of the profile should be well rounded as sharp sur-face finishes can lead to rapid seal wear.
Dynamic surface finishes
Piston rods are generally hard chrome plated. The hard-ness should be at least 67 Rockwell C. This gives anexcellent tribological surface and provided the rods areproduced by an established supplier within a surface fin-ish range of 0.1 to 0.3 µm Ra (4-12 µin CLA) no majorproblem should ensue, although the optimum surface fin-ish may well depend on the seal material.
Bore surface finishes can be more problematic. The typical methods of obtaining a bore finish are sum-marised in the figure below. Drawn over mandrel (DOM)tubing, as is, can be adequate, or a potential disasterdepending on the actual surface texture achieved andthe application. Increasing use is being made of SpecialSmooth Inside Diameter (SSID) DOM tubing, but in certaincircumstances, mainly when the seal is being driven intothe pressure, it can lead to wear of the seal through flowerosion. Such DOM tubing requires careful specification.The consistency of roller burnished or honed tube is to bepreferred. Skived and roller burnished tubing is verysmooth (less than 0.1µm Ra) (4 µin CLA) and may be too smooth for rubber sealingelements in some applications. True honed tube, pro-duced between (0.1 and 0.4 µm Ra) (4-16 µin CLA) is themost expensive, but has the best finish.
Static surface finishes
The static sealing surface finish must not be ignored inthe control of leakage. Generally, these are fine turnedand should be free from chatter marks.
Surface roughness
Hallite Seals
HOT DRAWN TUBE ROLLED AND WELDED TUBE
COLD DRAWN OVER MANDREL(DOM)(THIS IMPROVES MECHANICALPROPERTIES BYWORK HARDENING)
HONED
(INTERNALLY GROUND)
SURFACE FINISH
0.1 - 1.6 µm Ra
(4-16 µin CLA)
TYPICALLY 0.4 µm Ra
(16 µin CLA)
SURFACE TEXTURE CHARAC-
TERISTIC
CROSS-HATCHED
PATTERN OF
FINE GROOVES
(EMERY LAP-ONE DIRECTION-
AL)
SKIVED AND
ROLLER BURNISHED
SURFACE FINISH
<0.1 µm Ra
(<4 µin CLA)
SURFACE TEXTURE CHARAC-
TERISTIC
CIRCUMFERENTIAL
LINES
(OPTICAL EFFECT)
FINE FINISHED DOM
(i.e. AS DRAWN)
SURFACE FINISH
>0.1 µm Ra
(>4 µin CLA)
SURFACE TEXTURE
MATT GREY
(POSSIBLY WITH
AXIAL LINES)
(SSID TUBING
IS REFLECTIVE)
Methods of manufacturing of tubes for hydraulic cylinders and resulting surface textures.
Rt
AIR
METAL
Rq
Ra
Mean line
Operating conditionsCylinder Light Medium Heavy
Specification Duty Duty Duty
Pressure Max. 350 bar 5000 psi 500 bar 7500 psi 700 bar 10000 psiNormal 160 bar 2300 psi 250 bar 3600 psi 400 bar 6000 psiWorking No Pressure Peaks Intermittent Pressure Peaks Regular Pressure Peaks
Design Lower operating stresses. Steady operating stresses with Highly stressed for majorityRigid well aligned mounting, intermittent high stress, some of its working life. Sideminimal side loading. side loading. Ioading common.
Condition of Fluid Good system filtration Good system filtration but Contamination unavoidable no cylinder contamination some cylinder contamination from internal and externallikely. Iikely. sources.
Working Environment Clean, and inside a building. Mixture of indoor & outdoors Outdoors all the time or aOperating temperature but some protection from the dirty indoor area. Widevariations limited. weather. variations in temperature,
both ambient & working.Difficult service conditions.
Usage Irregular with short section of Regular usage with most of Large amount of usage atstroke at working pressures. the stroke at working high pressure with peaksRegular usage but at low pressure. throughout the stroke.pressure .
Typical Applications Machine tools, lifting Heavy duty lifting equipment, Foundry & metal fabricationequipment, mechanical agricultural equipment, plant, mining machinery,handling, injection moulding light duty off road vehicles, roof supports, heavy duty earth machines, control and robot cranes & lifting platforms, moving machinery, heavy duty equipment, agricultural heavy duty machine tool & off-road vehicles, machinery, packaging injection moulding machines, heavy duty presses.equipment, aircraft some auxiliary mining equipment & light machinery, aircraft equipment, duty tippers. presses, heavy duty tippers
(telescopic), heavy dutymechanical handling.
Pressure, Speed, Temperature RangeFrom many years of application experience with sealing hydraulic equipment, supported by the results from an extensive testprogramme, we know that it is necessary to link the three main operating features of speed, pressure, and temperature to achievea satisfactory seal performance. After carefully considering each product we are able to specify the maximum speed andpressure with a temperature range within which the seal will operate safely. If your operating conditions do not comply with those recommended please send your details to your local Hallite sales office.
Hallite Seals
Swivel Seal
Hallite 80Hallite Seals
International Limited130 Oldfield Road, Hampton
Middlesex. TW12 2HTTel : 0181 941 2244Fax : 0181 783 1669
e-mail: [email protected]
AustraliaHallite Seals Australia Pty Limited
1/1 St.James PlaceSeven Hills, N.S.W. 2147
(PO Box 91)Tel : 02 9620 7300Fax : 02 9620 7400
e-mail: [email protected]
CanadaHallite Seals (Canada) Limited
83 Galaxy Boulevard. # 41Etobicoke, Ontario.Canada. M9W 5X6Tel : (416) 675 2505 Fax : (416) 675 4341
e-mail: [email protected]
FranceHallite (France) Limited
Z.A. Les Petits Carreaux, 1 Av Des Lys94385 Bonneuil-sur-marne, Cedex.
Tel : 01 43 77 85 50Fax : 01 43 77 93 93
GermanyDichtelemente Hallite GmbH.
Billwerder Ring 1721035 Hamburg.
Tel : (040) 73 47 48-0Fax : (040) 73 47 48 49e-mail: [email protected]
ItalyHallite Italia S.r.l.Via Umbria, 33
57017 Stagno - Collesalvetti(Livorno) Italia.
Tel : 0586 943666Fax : 0586 943700
U.S.A.Hallite Seals Inc.
3820 Merchant RoadFort Wayne, Indiana. 46818
Tel : (219) 489 0002 Fax : (219) 489 5119
e-mail: [email protected]
The Hallite 80
All our activities conform to the highest qualityassurance systems. Hallite Seals Intern a t i o n a lquality management systems are accredited
to ISO 9001 and are approved by manyof the world’s foremost OEM’s.
Designed & engineered for ease of useThe Hallite 80 is designed specifically for use in swivel joints or rotary
unions commonly found on earthmoving equipment. Swivel jointsare used on machines where a 360° movement is required and
enables hydraulic pressure to be transferred through the joint.A one piece seal manufactured in Hallite’s Hythane® 181, the
Hallite 80 is easily fitted in its groove and provides excellentsealing under normal working conditions.
•Excellent service range
The Hallite 80is designed to operateunder normal working
conditions at pressures of 350 bar / 5000 p.s.i.
and at temperatures ofbetween -45°C to 110°C
and -50°F to 230°F.
•Instant sealingSpecial pressure activation grooves are incorporated in the seal’s design to enable an immediate seal of the joint.
•Pops in the grooveThe elastic and
flexible nature of theHythane material enablesthe Hallite 80 to be easily
fittedin its groove.
•Hard wearingThe hard wearing nature of Hallite’s Hythane material provides long life in service .
•Replaces 2 part sealsThe Hallite 80 swivel seal is a one piece double acting seal and replaces two part seals typically used in swivel joints.
F9B20H89H
Piston Seal Double Acting
Hallite 83
ANTI EXTRUSION RINGSYNTHETIC RUBBER SEALING MEMBER
OPERATING CONDITIONS
MAXIMUM WORKING PRESSURE
MAXIMUM SPEED T E M P E R ATURE RANGE T E M P E R ATURE RANGE
m / s e c —30°C + 80°C —30°C + 100°C
0 . 5 250 bar /.3750 p.s.i 160 bar / 2400 p.s.i.
0 . 1 5 400 bar / 6000 p.s.i. 200 bar / 3000 p.s.i.
SURFACE ROUGHNESS
µ m R a µ m R t µin CLA
DYNAMIC SEALING FA C E Ø D1 0.1 to 0.4 4 max 4 to 16
S TATIC SEALING FA C E Ø d1, Ø d2 1.6 max 10 max 63 max
S TATIC HOUSING FACES Ø d3, L1, L2 3.2 max 16 max 125 max
CHAMFERS & RADII in
S E A LS E C T I O N S 0 . 1 8 7 0 . 2 5 0 0 . 3 7 5
MIN CHAMFER C 0 . 1 5 6 0 . 1 8 7 0 . 2 5 0
MAX FILLET R A D r1 0 . 0 1 0 0 . 0 1 6 0 . 0 1 6
MAX FILLET R A D r2 0 . 0 1 0 0 . 0 1 6 0 . 0 1 6
®
DesignThe Hallite Tri-Seal assembly offers the engineer many advantages when considering the design of cast iron,bronze,alloy etc.one-piece pistons in double-acting hydraulic cylinders, not the least being cost effectiveness with longand efficient seal life.
The Tri-Seal consists of two split plastic anti-extrusion rings and a nitrile syntheticrubber sealing member.Under pressure, the seal exerts a wedging action on theanti-extrusion ring, reducing the clearance between the cylinder bore and thepiston, thus minimising the possibility of extrusion of the seal.
Wear rings are also available for this assembly, allowing the designer to benefitfrom the following advantages :
•Eliminate metal to metal contact in the bore •One piece steel piston
•Improved alignment for optimum seal life •Smoother operation
All our activities conform to the highest quality assurance systems. Hallite SealsI n t e rnational quality management systems are a c c redited to ISO 9001 and area p p roved by many of the world’s f o remost OEM’s.
FEATURES• EFFICIENT SEALING• LOW COST• INTERCHANGEABLE• WITH MOST • COMPETITIVE DESIGNS • ROBUST CONSTRUCTION• LOW FRICTION • SIMPLE MACHINING • LONG LIFE • EASY ASSEMBLY
INSTALLATIONFast assembly of the seal is carried out asfollows:The intermediate seal is stretched over thepiston into the recess.The split anti-extrusion rings are positionedwith the concave face against the seal.
MEDIASeals are suitable for mineral basedhydraulic fluid, water soluble and water gly-col fluids. The temperature for the standardrange can be -40°C for intermittent use. Other materials are available which canextend the temperature range down to -60°C or up to +135 °C and to suit esterbased or synthetic non-flammable fluids.
INCH
Piston Seal Double Acting
Hallite 83
1.500 +0.005 1.125 +0.005 1.321 -0.001 1.450 +0.005 0.452 0.250 6111910*-0.005 -0.005 -0.003 -0.005
2.000 +0.005 1.500 +0.005 1.821 -0.001 1.950 +0.005 0.587 0.250 2326310*-0.005 -0.005 -0.003 -0.005
2.500 +0.005 2.000 +0.005 2.321 -0.001 2.450 +0.005 0.587 0.250 2122010*-0.005 -0.005 -0.004 -0.005
3.000 +0.005 2.500 +0.005 2.774 -0.001 2.940 +0.005 0.587 0.250 2122110*-0.005 -0.005 -0.004 -0.005
3.250 +0.005 2.750 +0.005 3.023 -0.001 3.190 +0.005 0.587 0.250 2327610*-0.005 -0.005 -0.004 -0.005
3.500 +0.005 3.000 +0.005 3.274 -0.001 3.440 +0.005 0.587 0.250 2122210*-0.005 -0.005 -0.005 -0.005
4.000 +0.005 3.250 +0.005 3.773 -0.001 3.940 +0.005 0.780 0.250 2326410*-0.005 -0.005 -0.005 -0.005
5.000 +0.005 4.250 +0.005 4.713 -0.001 4.910 +0.005 0.780 0.375 2326510*-0.005 -0.005 -0.005 -0.005
6.000 +0.005 5.250 +0.005 5.713 -0.001 5.910 +0.005 0.780 0.375 2326610*-0.005 -0.005 -0.005 -0.005
* When ordering Type 83 with wear rings please replace the last digit of the part number with 9. eg : Type 83 2.500 x 2.000, without wear rings part number 2122010, with wear rings 2122019
Note : For availability of sizes not listed please consult your local Hallite sales department.
B O R E TO L H O U S I N G TO L B E A R I N G TO L P I S TO N TO L H O U S I N G B E A R I N G PA R TD I A D I A D I A D I A LENGTH L1 LENGTH L2 N U M B E RØ D1 Ø d1 Ø d2 Ø d3 TOL + 0.005 TOL + 0.004 - 0
S
Ød ØD
20° — 30°
CL
rF S
Ød ØD
20° — 30°
CL
r
Ød
L L
r
Ød
WITH WEAR RINGSWITHOUT WEAR RINGS
MAXIMUM EXTRUSION GAP F
P R E S S U R E p . s . i . 2 4 0 0 3 7 5 0 6 0 0 0
MAXIMUM GAP i n 0 . 0 2 4 0 . 0 2 0 0 . 0 1 6
EXTRUSION GAPPlease note that the figures shown for the extrusion gap F relate to the maximumpermissible, worst case situation with the gap all on one side.
Note also that extrusion is closely linked to pressure and temperature and thatin general, the smaller the gap the better the seal performs.
FEATURES•High load capability•Infinite length range•Virtually Zero Swell
•Self lubricating•Low friction•Cut to Suit
Hallite 506 bearing strip provides anextremely effective, hard wearing and easyto use bearing material.
Manufactured to very tight tolerancesand providing bearing solutions for reciprocating, oscillating and slow rotarymovement applications, Hallite 506 bearing strip is used in many of today’smost arduous hydraulic applicationsaround the world.
Commonly fitted in reciprocating cylinders as rod and piston bearings,Hallite 506 is capable of withstandingextreme side-loads p reventing metal to
m etal contact. The mate ri a l ’s design incorporates micro indentations on thebearing strip’s surface to trap fluid andprovide built-in lubrication to the bearing.
The 506 bearing strip is manufacturedby a patented process, using a woven fabric reinforced polyester resin materialand is proven to be c o mpatible with a widera n ge of fluids, including mineral oils,water based fluids and phosphate esters, toproduce a rectangular section strip whichis available in a wide range of inch andmetric sizes including cross sections specified in ISO 10766.
Ready made bearings, cut to size and to customer specifications,and ready for installation, Hallite 506 bearings have become anindustry standard favoured by designers and specifiers alike.Generally produced for the medium to high volume user.
Available in a wide range of preformed diameters, spirals aresupplied in continuous lengths to suit a range of inside and outside diameters. Ideal for lower volume users requiring various diameters.
Packaged in a dispenser for ease of storage and handling, flatcoils are supplied in 10 metre lengths suitable for a wide rangeof diameters and are ideal for those using or supplying one offbearings for small volume requirements.
All standard bearing strip is printed with a size reference and includes distance marking every100mm on metric size sections and every six inches on inch size sections for guidance only.
Hallite 506 bearing strip is available in three forms:
Within the size range, items suffixed ‡ indicate cross sections to ISO 10766.
** Denotes non sta n d a rd pro d u c t .
Some sizes, generally thick sectionbearing strip, are not available inflat coils.
CUT RING S
SPIRAL LENGT H S
F LAT COILS
All our activities conform to thehighest quality assurance systems.Hallite Seals Internationalare fully accredited to ISO 9001and are approved by many of theworld’s foremost OE M s .
S L1 m e t r i c
1.50 5.62.00 10.02.00 15.02.50 5.6 ‡2.50 9.7 ‡2.50 13.02.50 15.0 ‡2.52 19.52.50 20.02.50 25.0 ‡2.52 30.02.77 15.0**2.77 20.0**2.77 25.0**3.00 12.83.00 20.03.02 15.03.20 9.73.20 19.73.50 25.04.00 6.14.00 9.74.00 20.04.00 25.0 ‡4.00 30.0
S L1 i n c h
0.062 0.3750.125 0.3750.125 0.5000.125 0.6250.125 0.7500.125 1.000
R A N G E
Wear Rings
Hallite 506
ØD3ØD2 Ød1
L1
G2
G2
Ød3Ød2 ØD1
0.4maxRAD
S
S
L1
0.4maxRAD
w
w60°
Hallite’s commitment to continuous product development meansthat specifications may sometimes change without notice.
Cutting bearing strip to size1. Select the groove width (L1) and
section (S) required.2. In the case of a rod bearing, position
the bearing strip around the rod or inthe case of a piston bearing, place it inthe piston groove and mark the point ofoverlap. Determine the correct widthof bearing split (W) for the Ød or ØDbeing used, as indicated in the technicaldetails, and make a second mark.
3. Remove the strip and cut at the second marked position to the desiredangle using secateurs or other similarcutting tool.It is recommended that the standardcutting angle is used for the majority of applications.
For complete technical specifications contact your local Hallite sales of fice.
When ordering please clear ly statewhether cut rings, spiral lengths orflat coils are required. For cut ringsand spiral lengths please statewhether rod or piston applicationand provide inside (Ød) or outside(ØD) diameters, groove width (L1)and section (S) dimensions andwhere spiral lengths are orderedalso specify length required. Forflat coils please specify g roove width(L1) and section (S) dimensions.
Bearing split cutting angle
STA N DA R D
A LT E R NATI V E
M E T R I C I N C HW I D TH OF BEARING SPLIT W
Ø d1 / Ø D1 WUp to 50 3 . 00 - 1.50Up to 12 0 5 . 00 - 3.50Up to 250 9 . 00 - 7. 2 5Up to 550 17. 00 - 15 . 00
HOUSING DETA I L SRO D Ø d1 f 9
Ø D2 = Ø d1 + 2S up to : Ø80 H10above : Ø80 H9
Ø D3 = Ø d1 + G G min / maxL1 + 0.2 -0 mm
P I STON Ø D1 H 11Ø d2=Ø D1- 2 S f 9Ø d3 = Ø D1 + G G min / maxL1 + 0.2 -0 mm
Ø d1 / Ø D1 WUp to 2” 0 . 12 - 0.06Up to 5” 0 . 19 - 0.14Up to 10 ” 0.35 - 0.29Up to 22” 0.67 - 0.59
Ø d1 f 9Ø D2 = Ø d1 + 2S up to : 3 ”H 10
above : 3 ”H 9Ø D3 = Ø d1 + G G min / maxL1 + 0.008 -0 in
Ø D1 H 11Ø d2=Ø D1- 2 S f 9Ø d3 = Ø D1 + G G min / maxL1 + 0.008 -0 in
I N S TA L L ATION DETA I L S
G min con trols the minimum meta lto metal con ta ct between the g l a n dand rod or bore and pisto n .G max con trols the maximum ex tru s ion gap seen by a seal a s s oc i ated with the be a ri n g.
Ty p ica l ly,G min should be 0.7mm /0 . 0 2 8 ” but can be red uced whenrequ i red by the ex tru s ion gap for theseal and the build up of tolera nce s.The ab s ol ute minimum metal tometal cle a ra nce recom men ded is 0.1mm / 0.0 0 4 ”For ap pl ications not using a seal G max can be 0.6 x S
Wear Rings
Hallite 533
ØD3ØD2 Ød1
L1
G2
G2
Ød3Ød2 ØD1
S
S
L1
max RAD0.2 mm0.016 in
max RAD0.2 mm0.016 in
IN STEP WITH VALUEHallite type 533 manufactured wear rings
provide cost savings over more labourintensive (machined) wear rings.
.120
.125
1/8" GAP
THE RIGHT CHOICEHallite 533 wear rings are designed for use
as piston and rod bearings in hydraulic cylinders.Type 533 wear rings are manufactured
from heat stabilized 33% glass reinforced6/6 nylon that provides high impact,
flexural and compression strength.
ADVANTAGES OF HALLITE 533• MANUFACTURED TO SIZE.• NO MACHINING-NO POLLUTION.• MANUFACTURED TO EXTREMELY ••• CLOSE THICKNESS TOLERANCE.• COST SAVINGS OVER MACHINED• WEAR RINGS.• SUPERIOR CONTAMINATION• INGESTION.• WELL PROVEN IN EARTHMOVING• APPLICATIONS.• AVAILABLE IN INCH AND METRIC• SIZES.
T Y P I C A L P R O P E R T I E S
P H E N O L I C BRONZE / PTFE TYPE 533
F L E X U R A L S T R E N G T H 18500 p.s.i. N / A 38000 p.s.i.
TENSILE STRENGTH 8000 p.s.i. 2600 p.s.i. 27000 p.s.i.
COMPRESSIVE STRENGTH 24000 p.s.i. 3100 p.s.i. 35000 p.s.i.
All our activities conform to the highest quality
assurance systems. Hallite Seals Intern a t i o n a l
quality management systems are accredited to
ISO 9001 and are approved by many
of the world’s foremost OEM’s.
metric
inch
Wear Rings
Hallite 533PA R T
Ø D1 Ø d1 L1 N U M B E R
45.00 39.00 5.00 F3018950.00 43.60 19.00 F3024256.00 50.00 5.00 F3020660.00 53.60 19.00 F3023363.00 55.40 7.50 F3021463.00 57.00 10.00 F3019570.00 62.40 7.50 F3021370.00 64.00 10.00 F3019070.00 64.00 10.38 F3018270.00 65.00 20.00 F3030880.00 70.40 7.50 F3021580.00 74.00 10.00 F3017080.00 74.00 10.38 F3018390.00 80.40 7.50 F3021690.00 82.40 7.50 F3022590.00 84.00 15.00 F3017190.00 84.00 15.38 F3018490.00 84.00 24.50 F3029390.00 84.00 25.00 F30294
100.00 94.00 8.00 F30245100.00 94.00 15.00 F30172100.00 94.00 15.38 F30185100.00 94.00 25.00 F30295105.00 98.64 15.88 F30210105.00 99.00 24.50 F30296110.00 104.00 15.00 F30173110.00 104.00 25.00 F30297110.00 105.00 7.90 F30312115.00 109.00 15.00 F30192115.00 109.00 15.38 F30186115.00 110.00 7.90 F30311115.00 110.00 9.50 F30313120.00 115.00 7.90 F30310125.00 119.00 20.00 F30174125.00 120.00 7.90 F30309130.00 103.00 30.00 F30323130.00 125.00 7.90 F30316
1.250 1.062 0.187 F300011.250 1.100 0.250 F300091.375 1.250 0.500 F303031.500 1.250 0.250 F300051.500 1.250 0.375 F300061.500 1.250 0.500 F303051.500 1.313 0.187 F300041.750 1.500 0.190 F302341.750 1.500 0.375 F302011.750 1.500 0.500 F300131.875 1.625 0.190 F301791.875 1.625 0.375 F302351.875 1.625 0.500 F303062.000 1.750 0.187 F400012.000 1.750 0.250 F300182.000 1.750 0.312 F300202.000 1.750 0.375 F300222.000 1.750 0.500 F300242.000 1.750 0.750 F300252.000 1.812 0.375 F303252.125 1.875 0.375 F200262.250 2.000 0.187 F400292.250 2.000 0.250 F301962.250 2.000 0.312 F300322.250 2.000 0.375 F300332.250 2.000 0.500 F300352.250 2.000 0.625 F300362.250 2.000 0.750 F300372.375 2.125 0.500 F300382.500 2.250 0.187 F300402.500 2.250 0.250 F300412.500 2.250 0.312 F300432.500 2.250 0.375 F300442.500 2.250 0.500 F300452.500 2.250 0.625 F300472.500 2.250 0.750 F300482.500 2.250 1.000 F302862.500 2.312 0.375 F303262.625 2.375 0.375 F201792.625 2.375 0.625 F302852.750 2.500 0.250 F302092.750 2.500 0.375 F300512.750 2.500 0.500 F300522.750 2.500 0.625 F300542.750 2.500 0.750 F300552.750 2.500 1.000 F300563.000 2.750 0.250 F300613.000 2.750 0.312 F300623.000 2.750 0.375 F300633.000 2.750 0.500 F300643.000 2.750 0.625 F301913.000 2.750 0.750 F300663.000 2.750 1.000 F300673.000 2.812 0.375 F30327
3.250 2.875 0.500 F302633.250 3.000 0.250 F302073.250 3.000 0.312 F302593.250 3.000 0.375 F300693.250 3.000 0.500 F300703.250 3.000 0.625 F302873.250 3.000 0.750 F300723.250 3.000 1.000 F300743.500 3.125 0.500 F201763.500 3.125 1.000 F201773.500 3.250 0.250 F300793.500 3.250 0.312 F302553.500 3.250 0.375 F300803.500 3.250 0.500 F300833.500 3.250 0.625 F300853.500 3.250 0.750 F300873.500 3.250 1.000 F302753.500 3.312 0.375 F303283.625 3.375 0.500 F300903.625 3.375 1.000 F300913.750 3.500 0.250 F400273.750 3.500 0.312 F302603.750 3.500 0.375 F300923.750 3.500 0.500 F300933.750 3.500 0.625 F300943.750 3.500 0.750 F300954.000 3.625 0.500 F302174.000 3.625 1.000 F302184.000 3.750 0.250 F301004.000 3.750 0.312 F302564.000 3.750 0.375 F301014.000 3.750 0.500 F301024.000 3.750 0.625 F301044.000 3.750 0.750 F301054.000 3.750 1.000 F302194.250 4.000 0.312 F302614.250 4.000 0.375 F301074.250 4.000 0.500 F301084.250 4.000 0.625 F301094.250 4.000 0.750 F301104.250 4.000 1.000 F301124.500 4.250 0.312 F302624.500 4.250 0.375 F301144.500 4.250 0.500 F301154.500 4.250 0.625 F301184.500 4.250 0.750 F301204.500 4.250 1.000 F302784.750 4.500 0.375 F301944.750 4.500 0.500 F301214.750 4.500 0.750 F301234.750 4.500 1.000 F301245.000 4.750 0.375 F301265.000 4.750 0.500 F301275.000 4.750 0.625 F30128
5.000 4.750 0.750 F301295.000 4.750 1.000 F301695.250 5.000 0.500 F301315.250 5.000 0.625 F301325.250 5.000 0.750 F301335.250 5.000 1.000 F302695.500 5.250 0.375 F301355.500 5.250 0.500 F301365.500 5.250 0.625 F301385.500 5.250 0.750 F301405.500 5.250 1.000 F301415.750 5.500 0.750 F301435.750 5.500 1.000 F301446.000 5.750 0.500 F301456.000 5.750 0.625 F301476.000 5.750 0.750 F302086.000 5.750 1.000 F301496.250 6.000 0.500 F302796.250 6.000 0.625 F301516.250 6.000 0.750 F301526.250 6.000 1.000 F301536.500 6.250 0.500 F301546.500 6.250 0.750 F301996.500 6.250 1.000 F301576.750 6.500 1.000 F302767.000 6.750 0.500 F301587.000 6.750 0.625 F301597.000 6.750 0.750 F302777.000 6.750 1.000 F301607.250 7.000 0.500 F302817.250 7.000 0.750 F302847.250 7.000 1.000 F302897.500 7.250 0.500 F301627.500 7.250 0.750 F301657.500 7.250 1.000 F301667.750 7.500 0.500 F201607.750 7.500 1.000 F302478.000 7.750 1.000 F302318.250 8.000 1.000 F302488.500 8.250 0.500 F301688.500 8.250 1.000 F302468.750 8.500 1.000 F302499.000 8.750 1.000 F302309.250 9.000 1.000 F302539.500 9.250 1.000 F302549.750 9.500 1.000 F3025010.000 9.750 1.000 F3022110.250 10.000 1.000 F3025810.500 10.250 1.000 F3025711.000 10.750 1.000 F3022211.500 11.250 1.000 F3025212.000 11.750 1.000 F3022313.000 12.750 1.000 F30224
135.00 128.00 14.80 F30319135.00 130.00 7.90 F30315140.00 133.00 35.00 F30298140.00 134.00 15.00 F30175140.00 134.00 20.00 F30202140.00 135.00 7.90 F30314145.00 138.00 14.80 F30318150.00 143.00 14.80 F30317150.00 143.00 35.00 F30299160.00 153.00 40.00 F30300160.00 154.00 15.00 F30176160.00 154.00 20.00 F30203180.00 172.00 45.00 F30320180.00 174.00 20.00 F30204190.00 182.00 45.00 F30301200.00 192.00 22.00 F30321200.00 192.00 45.00 F30322200.00 194.00 20.00 F30324
PA R TØ D1 Ø d1 L1 N U M B E R
PA R TØ D1 Ø d1 L1 N U M B E R
PA R TØ D1 Ø d1 L1 N U M B E R
PA R TØ D1 Ø d1 L1 N U M B E R
PA R TØ D1 Ø d1 L1 N U M B E R
Hallite SealsInternational Limited130 Oldfield Road, Hampton
Middlesex. TW12 2HTTel : 020 8941 2244Fax : 020 8783 1669
e-mail: [email protected]
AustraliaHallite Seals Australia Pty Limited
1/1 St.James PlaceSeven Hills, N.S.W. 2147
(PO Box 91)Tel : 02 9620 7300Fax : 02 9620 7400
e-mail: [email protected]
CanadaHallite Seals (Canada) Limited
83 Galaxy Boulevard. # 41Etobicoke, Ontario.Canada. M9W 5X6Tel : (416) 675 2505 Fax : (416) 675 4341
e-mail: [email protected]
FranceHallite (France) Limited
Z.A. Les Petits Carreaux, 1 Av Des Lys94385 Bonneuil-sur-marne, Cedex.
Tel : 01 43 77 85 50Fax : 01 43 77 93 93
e-mail: [email protected]
GermanyDichtelemente Hallite GmbH
Billwerder Ring 1721035 Hamburg
Tel : (040) 73 47 48-0Fax : (040) 73 47 48 49e-mail: [email protected]
ItalyHallite Italia S.r.l.Via Umbria, 33
57017 Stagno - Collesalvetti(Livorno) Italia.
Tel : 0586 943666Fax : 0586 943700
e-mail: [email protected]
USAHallite Seals Inc.
3820 Merchant RoadFort Wayne, Indiana. 46818
Tel : (219) 489 0002 Fax : (219) 489 5119
e-mail: [email protected]
www.hallite.co.uk
All our activities conform to the highest qualityassurance systems. Hallite Seals Intern a t i o n a lquality management systems are accredited
to ISO 9001 and are approved by manyof the world’s foremost OEM’s. F9A20H9A9H
FEATURES
•Heavy duty•High pressure
•High shock load•Twin lip design•Low pressure
sealing•Increased stability
•Long Life
Rod Seal
Hallite 621
Hallite’s commitment to continuous product development meansthat specifications may sometimes change without notice.
Hallite® and Hythane® are regis tered trademarksof Hallite Seals International Ltd.
M E T R I C I N C H
MAX. SPEED 1.0 m/sec 3.0 ft/secMAX. T E M P E R AT U R E -45°C + 110°C -50°F + 2 3 0 ° F
MAX. PRESSURE 700 bar 10,000 p . s . i .
The Hallite 621 rod seal isengineered specifically fordemanding applications whichare subject to high pressurefluctuations, extreme cyclicshock loadings and arduousoperating conditions, such as those experienced in off-highway, earthmoving andconstruction applications.
The seal features three critical component parts:
The main body of the seal, the shell, is manufactured in Hallite's high performancepolyurethane Hythane 181 and features the twinlip design. This equips the seal with flexibility for ease of installation and high performance atboth low and high temperatures.
The integral energiser is moulded in NBR, tailored for use at both low and high temperature. The unique profile forms amechanical lock with the seal shell and extendsthe energiser's capability to ensure optimum lowpressure sealing. This provides positive retentionand maximum responsiveness to the circumferential lips of the shell and helps toeliminate problems caused by negative pressurefluctuations in the housing, due to shock loading.
The polyacetal anti-extrusion ring extends thenormal pressure range of the twin-lip design andenables the seal to withstand heavy side loadsand extreme pressure spikes during operation.
Unique profiledNBR energiser
High performancepolyurethane"Hythane 181moulded shell.
Twin lip design
Polyacetal anti-extrusion ring
Hallite SealsInternational Limited130 Oldfield Road, Hampton
Middlesex. TW12 2HTTel : 020 8941 2244Fax : 020 8783 1669
e-mail: [email protected]
AustraliaHallite Seals Australia Pty Limited
1/1 St.James PlaceSeven Hills, N.S.W. 2147
(PO Box 91)Tel : 02 9620 7300Fax : 02 9620 7400
e-mail: [email protected]
CanadaHallite Seals (Canada) Limited
83 Galaxy Boulevard. # 12Toronto, Ontario.
Canada. M9W 6A4Tel : (416) 675 2505 Fax : (416) 675 4341
e-mail: [email protected]
FranceHallite (France) Limited
Z.A. Les Petits Carreaux, 1 Av Des Lys94385 Bonneuil-sur-marne, Cedex.
Tel : 01 43 77 85 50Fax : 01 43 77 93 93
e-mail: [email protected]
GermanyDichtelemente Hallite GmbH
Billwerder Ring 1721035 Hamburg
Tel : (040) 73 47 48-0Fax : (040) 73 47 48 49e-mail: [email protected]
ItalyHallite Italia S.r.l.Via Umbria, 33
57017 Stagno - Collesalvetti(Livorno) Italia.
Tel : 0586 943666Fax : 0586 943700
e-mail: [email protected]
USAHallite Seals Inc.
3820 Merchant RoadFort Wayne, Indiana. 46818
Tel : (219) 489 0002 Fax : (219) 489 5119
e-mail: [email protected]
www.hallite.co.uk
All our activities conform to the highest qualityassurance systems. Hallite Seals Intern a t i o n a lquality management systems are accredited
to ISO 9001 and are approved by manyof the world’s foremost OEM’s. F0A20H010H
FEATURES• Face expands for easy
installation
• Passes over ports
• Excellent wear &
abrasion resistance
• Static load holding
capability
• Replaces multiple piston
rings
• Increases cylinder
effectiveness
• Ideal for re-phasing
cylinders
• Ingests contamination
• Compact housing
Piston Seal
Hallite 714
For further information, including non-standardmaterial options available, please contact your local Hallite Seals sales office.
Profiles of actual seals may differ from those illustrated.
Hallite’s commitment to continuous productdevelopment means that specifications may
sometimes change without notice.
T h e rm o p l a st i c
Sealing face
Sta n d a rd Mate ri a l s
E n e rg i s e r
N B R
I N C H M E T R I C
MAX. SPEED 6.0 ft/sec 2.0 m/secT E M P E R ATURE RANGE -40°F + 230°F -40°C + 110°C
MAX. PRESSURE 7300 p.s.i. 500 bar
The Hallite 714 is a double acting seal capable of passing over ports. The reinforced,heat stabilised, thermoplastic sealing face,expands and contracts to fill the gap betweenthe piston and the cylinder wall and has a step-cut joint for ease of installation.
It will tolerate a considerable extrusion gap,thus reducing the possibility of piston-to-borecontact, and it of fers excellent static load holding capability.
The square section nitrile rubber energiserresponds quickly to pressure changes, providingexcellent sealing characteristcs under all pressure conditions.
Hallite SealsInternational Limited130 Oldfield Road, Hampton
Middlesex. TW12 2HTTel : 020 8941 2244Fax : 020 8783 1669
e-mail: [email protected]
AustraliaHallite Seals Australia Pty Limited
1/1 St.James PlaceSeven Hills, N.S.W. 2147
(PO Box 91)Tel : 02 9620 7300Fax : 02 9620 7400
e-mail: [email protected]
CanadaHallite Seals (Canada) Limited
83 Galaxy Boulevard. # 41Etobicoke, Ontario.Canada. M9W 5X6Tel : (416) 675 2505 Fax : (416) 675 4341
e-mail: [email protected]
FranceHallite (France) Limited
Z.A. Les Petits Carreaux, 1 Av Des Lys94385 Bonneuil-sur-marne, Cedex.
Tel : 01 43 77 85 50Fax : 01 43 77 93 93
e-mail: [email protected]
GermanyDichtelemente Hallite GmbH
Billwerder Ring 1721035 Hamburg
Tel : (040) 73 47 48-0Fax : (040) 73 47 48 49e-mail: [email protected]
ItalyHallite Italia S.r.l.Via Umbria, 33
57017 Stagno - Collesalvetti(Livorno) Italia.
Tel : 0586 943666Fax : 0586 943700
e-mail: [email protected]
USAHallite Seals Inc.
3820 Merchant RoadFort Wayne, Indiana. 46818
Tel : (219) 489 0002 Fax : (219) 489 5119
e-mail: [email protected]
www.hallite.co.uk
All our activities conform to the highest qualityassurance systems. Hallite Seals Intern a t i o n a lquality management systems are accredited
to ISO 9001 and are approved by manyof the world’s foremost OEM’s. F9B20H99H
The Hallite 735 is a compact double acting piston seal assemblydesigned for one piece pistons and is suitable for low to high pressure, medium to heavy duty applications.
The assembly comprises as s tandard a self-lubricating wear resistant bronze filled or glass / MoS2 filled PTFE cap ring, which is loaded by a NBR energiser.Thermoplastic split anti-extrusion rings support the seal on both sides and preventextrusion of the energiser and cap ring.
Hallite’s 735 piston seal is designed to be used in a variety of equipment and isparticularly suited for use in earthmoving and other off-highway equipment.
The range includes seals to suit established North American and Asian housings.
FEATURES•High pressure
•Heavy duty
•PTFE cap ring
•Compact design
•Low friction
•Long life
•Range of material options to
extend service temperature range
Capped T Seal
Hallite 735
For further information, including non-standardmaterial options available, please contact your local Hallite Seals sales office.
Profiles of actual seals may differ from those illustrated.
Hallite’s commitment to continuous productdevelopment means that specifications may
sometimes change without notice.
Thermoplastic
Please ensure the correct part number is used for the cap ring required.
PTFE, 40% bronze PTFE, 15 % glass, 5% MoS2
Cap ri n g
Sta n d a rd Mate ri a l s
E n e rg i s e r
Anti ex t rusion ri n g s
N B R
I N C H M E T R I C
MAX. SPEED 4.5 ft/sec 1.5 m/secMAX. T E M P E R AT U R E -40°F + 250°F -40°C + 120°C
MAX. PRESSURE 7500 p.s.i. 500 bar
1903 20032003200320032003200320032003
Hallite 764 Dual purpose piston seal
Designed to perform in double or single acting cylinder applications.Hallite is a world leader in seal design and manufacture with a century of seal technologyexperience.The new 764 Seal from Hallite will provide the performance needed in general hydrauliccylinder applications whilst providing both double acting and single acting functionality.One seal for both applications helps you, the customer, reduce time and cost.
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A C e n t u r y o f S e a l T e c h n o l o g y
Hallite Seals International Ltd130 Oldfield Road
Hampton MiddlesexTW12 2HT
T: 020 8941 2244F: 020 8783 1669
e-mail: [email protected]
Hallite 764
•One seal - Dual applicationMeans that only one type of seal for both double andsingle acting functions, need to be stocked.
Customer payback- Reduced stocks and reduced numberof parts ordered means increased savings inadministration, warehousing, design and build.
•Seal materialManufactured from "Hallite 361", a flexible thermoplasticpolyurethane which is one of the elastomeric materialsthat bridge the gap between flexible rubber and the morerigid engineering plastics.The result is a material which is tough, durable andideally suited to hydraulic cylinder applications.
Customer payback - Long service life giving maximumcosts savings to the customer compared with cheaperseal types.
•Seal designThe Hallite 764 face profile has been designed to createan efficient piston seal for both double and single actingapplications. The low profile contact with the bore of thecylinder at low pressure, minimizes friction and maintainsthe right level of seal squeeze providing an efficientsealing solution.
Customer payback - A combination of flexible materialand efficient design helps reduce friction and enhancesthe life and performance of the seal.
ØD1Ød1
S
C
r1
L1
C
20° TO 30°
HallitePiston Seals
TECHNICAL DETAILSM E T R I C I N C H
DESIGNThe Hallite 764 is a compact seal for light to
medium duty hydraulic cylinders. It is adouble acting piston seal with single actingcapabilities. This makes it an excellent choicefor double acting applications where minimaldynamic leakage is required.
The Hallite 764 comprises of a toughelastomeric face that is pre-loaded by anO ring. The housing width allows a narrowwidth piston to be used, but it isrecommended that an adequate bearing ismounted on one or both sides of the seal.
Housing dimensions for use with Hallite 87and 506 bearing strip are given in theinstallation details. For further details onbearing strip grooves, please refer to theappropriate data sheets.
For full details and availability please contactyour local Hallite Sales office.
FEATURES• DOUBLE ACTING SEAL WITH SINGLE
ACTING CAPABILITIES• EXCELLENT WEAR RESISTANCE• HIGH EXTRUSION RESISTANCE MAKES IT
IDEAL FOR USE WITH REMOTE WEAR RINGS SUCH AS THE HALLITE 506 OR 87
• ADVANCED FACE GEOMETRY PROVIDES ENHANCED DYNAMIC AND STATIC SEALING
• MORE TOLERANT TO DIRT AND CONTAMINATION THAN COMMON PTFE FACES
• RAPID RECOVERY AFTER ASSEMBLY, NO RESIZING REQUIRED
• ISO 7425 HOUSINGS
ØD1Ød1
S
C
r1
L1
20° 30°
C
OPERATING CONDITIONS
MAXIMUM SPEED 1.0 m/sec 3.0 ft/secT E M P E R A T U R E R A N G E -40°C + 110°C -40°F + 230°F
MAXIMUM PRESSURE 350 bar 5000 p.s.i.
MAXIMUM EXTRUSION GAP Figures show the maximum permissible gap all on one side using the minimum clearance Ø and maximum bore Ø
PRESSURE bar 1 0 0 1 6 0 2 5 0 3 5 0
MAXIMUM GAP mm 0 . 6 0 . 5 0 . 4 0 . 2
SURFACE ROUGHNESS µ m R a µ m R t µ i n C L A µ i n R M S
DYNAMIC SEALING FACE ØD1 0.1 ÷ 0 . 4 4 max 4 ÷ 1 6 5 ÷ 1 8STATIC SEALING FACE Ød1 1.6 max 10 max 63 max 70 maxSTATIC HOUSING FACES L1 3.2 max 16 max 125 max 140 max
CHAMFERS & RADII
GROOVE SECTION ≤ S mm 3 . 7 5 5 . 5 0 7 . 5 0 1 0 . 5 0MIN CHAMFER C mm 2 . 0 0 2 . 5 0 5 . 0 0 5 . 0 0
MAX FILLET RAD r1 m m 0 . 4 0 0 . 8 0 1 . 2 0 1 . 6 0
T O L E R A N C E Ø D1 Ø d1 L1
m m H 9 f 8 +0.2 -0
Wiper Seals
Hallite 860
DESIGNThe Hallite type 860 is a metal cased wiper, designed to press-fit intoopen groove housings. The type 860 comprises a precisely trimmedpolyurethane wiping element which is securely bonded to a metalcase treated with a rust inhibitor. Capable of operating in dirty conditions, the proportions of the polyurethane wiping lip allow it tofollow the side movement of the rod and to clear away heavilydeposited dirt.
Suitable for light, medium and heavy duty applications, the wiperhas been designed to provide ease of installation and offers excellentdurability in service. The type 860 offers a wide range, including sizessuitable for ISO 6195 type B housings and a range for standardJapanese housings.
FEATURES• EASE OF ASSEMBLY• LONG LIFE• PRECISION TRIMMED WIPING LIP• METAL CASE TREATED WITH
A RUST INHIBITOR• WIDE RANGE OF
APPLICATION USES• RANGE INCLUDES ISO &
JAPANESE STANDARD HOUSINGS.
NB: Part numbers suffixed by “†” are also interchangeable with Japanese housings.
Part numbers suffixed by “‡” indicate housing sizes to meet ISO6195 type B.
MEDIASeals are suitable for mineral basedhydraulic fluid.
All our activities conform to the highest
quality assurance systems.
Hallite Seals International quality
management systems
a re accredited
to ISO 9001 and are
a p p roved by many
of the world’s
f o remost OEM’s.
METAL CASE TREATED WITH A RUST INHIBITOR
PRECISION TRIMMED SEALING LIP
O P E R ATING CONDITIONS
T E M P E R ATURE RANGE
-30°C + 80°C -22°F +176°F
S U R FACE ROUGHNESS
µ m R a µ m R t µin CLA R M S
DYNAMIC SEALING FA C E Ø d1 0.1 to 0.4 4 max 4 to 16 5 to 18
S TATIC SEALING FA C E Ø D1 1.6 max 10 max 63 max 70 max
S TATIC HOUSING FACES L1 3.2 max 16 max 125 max 140 max
CHAMFERS & RADII mm
ROD DIAMETER Ø d1 up to 19mm above 19mm
MIN CHAMFER C 0 . 5 1 . 0
MAX FILLET R A D r1 0 . 4 0 . 4
CHAMFERS & RADII in
MIN CHAMFER1 C 0 . 0 4 0
MAX FILLET R A D r1 0 . 0 1 6
metric
Wiper Seals
Hallite 860
r1
L2
Ød1ØD1
L1
30°
C
ROD TOL HOUSING TOL HOUSING OVERALL PARTDIA f9 DIA H8 LENGTH L 1 LENGTH NUMBERØd1 ØD1 TOL+0.5 - 0 L2
ROD TOL HOUSING TOL HOUSING OVERALL PARTDIA f9 DIA H8 LENGTH L 1 LENGTH NUMBERØd1 ØD1 TOL+0.5 - 0 L2
15 -0.016 25 +0.033 5.0 7.0 6950000-0.059 +0.000
16 -0.016 22 +0.033 3.0 4.0 6950010-0.059 +0.000
18 -0.016 28 +0.033 5.0 7.0 6950020-0.059 +0.000
20 -0.020 30 +0.033 5.0 8.0 6950030-0.072 +0.000
25 -0.020 35 +0.039 5.0 8.0 6950040-0.072 +0.000
25 -0.020 37 +0.039 6.0 9.0 6950050†-0.072 +0.000
28 -0.020 38 +0.039 5.0 8.0 6950060-0.072 +0.000
30 -0.020 40 +0.039 5.0 8.0 6950070-0.072 +0.000
30 -0.020 42 +0.039 6.0 9.0 6950080†-0.072 +0.000
32 -0.025 42 +0.039 5.0 8.0 6950090-0.087 +0.000
35 -0.025 45 +0.039 7.0 10.0 6950100-0.087 +0.000
35 -0.025 47 +0.039 7.0 10.0 6950110†-0.087 +0.000
40 -0.025 50 +0.039 7.0 10.0 6950120‡-0.087 +0.000
40 -0.025 52 +0.046 7.0 10.0 6950130†-0.087 +0.000
45 -0.025 55 +0.046 7.0 10.0 6950140‡-0.087 +0.000
45 -0.025 57 +0.046 7.0 10.0 6950150†-0.087 +0.000
50 -0.025 60 +0.046 7.0 10.0 6950160‡-0.087 +0.000
50 -0.025 62 +0.046 7.0 10.0 6950170†-0.087 +0.000
55 -0.030 65 +0.046 7.0 10.0 6950180-0.104 +0.000
55 -0.030 69 +0.046 8.0 11.0 6950190†-0.104 +0.000
60 -0.030 70 +0.046 7.0 10.0 6950200-0.104 +0.000
60 -0.030 74 +0.046 8.0 11.0 6950210†-0.104 +0.000
65 -0.030 75 +0.046 7.0 10.0 6950220-0.104 +0.000
65 -0.030 79 +0.046 8.0 11.0 6950230†-0.104 +0.000
70 -0.030 80 +0.046 7.0 10.0 6950240‡-0.104 +0.000
70 -0.030 84 +0.054 8.0 11.0 6950250†-0.104 +0.000
75 -0.030 85 +0.054 7.0 10.0 6950260-0.104 +0.000
75 -0.030 89 +0.054 8.0 11.0 6950270†-0.104 +0.000
80 -0.030 90 +0.054 7.0 10.0 6950280‡-0.104 +0.000
80 -0.030 94 +0.054 8.0 11.0 6950290†-0.104 +0.000
85 -0.036 95 +0.054 7.0 10.0 6950300-0.123 +0.000
85 -0.036 99 +0.054 8.0 11.0 6950310†-0.123 +0.000
90 -0.036 100 +0.054 7.0 10.0 6950320‡-0.123 +0.000
90 -0.036 104 +0.054 8.0 11.0 6950330†-0.123 +0.000
95 -0.036 109 +0.054 8.0 11.0 6950340†-0.123 +0.000
100 -0.036 110 +0.054 7.0 10.0 6950350-0.123 +0.000
100 -0.036 114 +0.054 8.0 11.0 6950360†-0.123 +0.000
105 -0.036 121 +0.063 9.0 12.0 6950370†-0.123 +0.000
110 -0.036 120 +0.054 7.0 10.0 6950380-0.123 +0.000
110 -0.036 126 +0.063 9.0 12.0 6950390†-0.123 +0.000
115 -0.036 131 +0.063 9.0 12.0 6950400†-0.123 +0.000
120 -0.036 130 +0.063 7.0 10.0 6950410-0.123 +0.000
120 -0.036 136 +0.063 9.0 12.0 6950420†-0.123 +0.000
130 -0.043 146 +0.063 9.0 12.0 6950430†-0.143 +0.000
140 -0.043 160 +0.063 10.0 14.0 6950440†-0.143 +0.000
150 -0.043 170 +0.063 10.0 14.0 6950450†-0.143 +0.000
160 -0.043 180 +0.063 10.0 14.0 6950460†-0.143 +0.000
Wiper Seals
Hallite 862
FEATURES• EASE OF ASSEMBLY• LONG LIFE• PRECISION TRIMMED WIPING LIP• METAL CASE TREATED WITH
A RUST INHIBITOR• WIDE RANGE OF
APPLICATION USES
MEDIASeals are suitable for mineral basedhydraulic fluids.
PRECISION TRIMMED SEALING LIP
METAL CASE TREATED WITH ARUST INHIBITOR
O P E R ATING CONDITIONS
T E M P E R ATURE RANGE
-30°C + 80°C -22°F +176°F
S U R FACE ROUGHNESS
µ m R a µ m R t µin CLA R M S
DYNAMIC SEALING FA C E Ø d1 0.1 to 0.4 4 max 4 to 16 5 to 18
S TATIC SEALING FA C E Ø D1 1.6 max 10 max 63 max 70 max
S TATIC HOUSING FACES L1 3.2 max 16 max 125 max 140 max
CHAMFERS & RADII mm
ROD DIAMETER Ø d1 up to 19mm up to 80mm above 80mm
MIN CHAMFER C 0 . 5 1 . 0 1 . 5
MAX FILLET R A D r1 0 . 4 0 . 4 0 . 4
CHAMFERS & RADII in
MIN CHAMFER1 C 0 . 0 4 0
MAX FILLET R A D r1 0 . 0 1 6
DESIGNThe Hallite type 862 is a metal cased wiper, designed to press-fit intoopen groove housings. The type 862 comprises a precisely trimmedpolyurethane wiping element which is securely bonded to a metalcase treated with a rust inhibitor. Capable of operating in dirty conditions, the proportions of the polyurethane wiping lip allow it tofollow the side movement of the rod and to clear away heavilydeposited dirt.
Suitable for light, medium and heavy duty applications, the wiperhas been designed to provide ease of installation and offers excellent durability in service. The type 862 offers a range of sizes suitable for standard American inch housings.
All our activities conform to the highest
quality assurance systems.
Hallite Seals International quality
management systems
a re accredited
to ISO 9001 and are
a p p roved by many
of the world’s
f o remost OEM’s.
inch
Wiper Seals
Hallite 862
r1
Ød1ØD1
L1
30°
C
ROD TOL HOUSING TOL HOUSING TOL PARTDIA f9 DIA H8 LENGTH L 1 NUMBERØd1 ØD1
ROD TOL HOUSING TOL HOUSING TOL PARTDIA f9 DIA H8 LENGTH L 1 NUMBERØd1 ØD1
0.625 -0.0006 1.125 +0.0012 0.313 +0.020 6960000-0.0023 +0.0000 -0.000
0.750 -0.0008 1.250 +0.0016 0.313 +0.020 6960010-0.0028 +0.0000 -0.000
1.000 -0.0008 1.500 +0.0016 0.313 +0.020 6960020-0.0028 +0.0000 -0.000
1.125 -0.0008 1.625 +0.0016 0.313 +0.020 6960030-0.0028 +0.0000 -0.000
1.250 -0.0010 1.750 +0.0016 0.313 +0.020 6960040-0.0034 +0.0000 -0.000
1.375 -0.0010 1.875 +0.0016 0.313 +0.020 6960050-0.0034 +0.0000 -0.000
1.500 -0.0010 2.000 +0.0018 0.313 +0.020 6960060-0.0034 +0.0000 -0.000
1.625 -0.0010 2.125 +0.0018 0.313 +0.020 6960070-0.0034 +0.0000 -0.000
1.750 -0.0010 2.250 +0.0018 0.313 +0.020 6960080-0.0034 +0.0000 -0.000
2.000 -0.0012 2.500 +0.0018 0.313 +0.020 6960090-0.0041 +0.0000 -0.000
2.250 -0.0012 2.750 +0.0018 0.313 +0.020 6960100-0.0041 +0.0000 -0.000
2.500 -0.0012 3.000 +0.0018 0.313 +0.020 6960110-0.0041 +0.0000 -0.000
2.750 -0.0012 3.250 +0.0022 0.313 +0.020 6960120-0.0041 +0.0000 -0.000
3.000 -0.0012 3.500 +0.0022 0.313 +0.020 6960130-0.0041 +0.0000 -0.000
3.250 -0.0014 3.750 +0.0022 0.313 +0.020 6960140-0.0048 +0.0000 -0.000
3.250 -0.0014 3.875 +0.0022 0.313 +0.020 6960150-0.0048 +0.0000 -0.000
3.500 -0.0014 4.000 +0.0022 0.313 +0.020 6960160-0.0048 +0.0000 -0.000
3.500 -0.0014 4.125 +0.0022 0.313 +0.020 6960170-0.0048 +0.0000 -0.000
3.750 -0.0014 4.375 +0.0022 0.313 +0.020 6960180-0.0048 +0.0000 -0.000
4.000 -0.0014 4.625 +0.0022 0.313 +0.020 6960190-0.0048 +0.0000 -0.000
4.000 -0.0014 4.750 +0.0025 0.313 +0.020 6960200-0.0048 +0.0000 -0.000
4.000 -0.0014 5.000 +0.0025 0.500 +0.020 6960210-0.0048 +0.0000 -0.000
4.500 -0.0014 5.125 +0.0025 0.313 +0.020 6960220-0.0048 +0.0000 -0.000
4.500 -0.0014 5.500 +0.0025 0.500 +0.020 6960230-0.0048 +0.0000 -0.000
5.000 -0.0016 5.625 +0.0025 0.313 +0.020 6960240-0.0056 +0.0000 -0.000
5.000 -0.0016 6.000 +0.0025 0.500 +0.020 6960250-0.0056 +0.0000 -0.000
Hallite’s commitment to product development means that specifications may change without notice.
Hallite Seals
Filled PTFE rod buffer seals; low friction and simple groove design, used to protect 16 / 416 the primary rod seal from pressure spikes.
A tough, abrasion resistant rod wiper incorporating pressure relief ribs, an outside lip 38 for effective sealing of housing and a precision trimmed wiping lip.
A filled PTFE ring to protect piston seals and bearings from dieseling 88 and ingression of contaminants.
A resilient all round bearing ring manufactured using woven fabric reinforced 506 polyester, capable of withstanding extreme side loads.
A polyurethane rod wiper incorporating pressure relief ribs, an outside lip for effective520 sealing of housing and precision trimmed wiping lip.
533 A tough glass filled nylon bearing.ring for piston and rod applications.
A general purpose seal for rod and piston, manufactured in Hythane 181, hard wearing 601 and flexible for easy installation. Can also be used with back ups for higher pressures.
A superlative dry rod seal with twin lip design, manufactured in Hythane 181,605 easy to install and designed for demanding applications.
An asymmetric piston seal manufactured in Hythane 181. A very flexible, hard wearing 606 seal used in back to back sealing arrangement for double acting applications.
The top of the range twin lip rod seal is manufactured in Hythane 181; with unique 621 profiled rubber energiser and acetal anti-extrusion ring to withstand high pressures
and shock loads, the seal provides complete lip actuation under all pressure conditions.
A heavy duty rod buffer seal manufactured in Hythane 181. Unique patented design 653 protects the primary rod seal from pressure spikes and is designed to prevent
inter-seal pressure build up. The seal is interchangeable with popular PTFE designs.
A high pressure, heavy duty, double acting piston seal with a tough wear resistant 730 TPE face , two thermoplastic anti-extrusion rings and rubber energiser.
A proven and reliable design commonly used in heavy duty equipment.
A high pressure, heavy duty, low friction double acting piston seal with a filled PTFE 735 cap ring, two thermoplastic anti-extrusion rings and rubber energiser. A compact and
reliable design commonly used in off-highway and other mobile equipment.
Press fit metal cased rod wipers incorporating a precision trimmed polyurethane860 / 862 wiping lip and a metal case treated with a rust inhibitor for longer life.
A low friction PTFE buffer seal, used to protect the primary rod seal from SRB / SRS pressure spikes. SRB incorporates thermoplastic back up ring for severe applications
Sealing Systems for Off-highway Equipment
All our activities conform tothe highest quality assurancesystems. Hallite SealsInternational are accreditedto ISO 9001 and areapproved by many of theworlds foremost O.E.M.s
Within the off-highway sector, there is an ever increasing demand on equipmentmanufacturers for their products to perform a variety of different functions: excavating, digging, loading, shovelling, lifting, stacking; the list is endless. Performing in severe working environments where contamination from internal and external sources is often present, off-highway equipment is highlystressed and is subjected to heavy side loads and regular pressure peaks. Working in a wide range of temperatures, the equipment is required to be highly productive and easily maintained and repaired.
Hallite Seals offer the range and scope of products necessary for this demanding global industry.
The Gland
The Piston
Wi p e r s
Buffer Seals
Gland Bearings
Rod Seals
86052038 862
605 621
65341616 SRS
533 506
735730 606 601
88
SRB
506533
Off-highway
Anti-Dieseling Rings
Piston Bearings
Piston Seals
abcdefSealing arrangements shown illustrate popular global designs. Always seek advice about your specific application.