megapower - mark allen

MEGAPOWER

INDEX

Introduction to Megapower belts 2

Megapower belt system specifications 3

Classifications 4

Power transmission calculation procedure 6

Calculation parameters 8

Belt calculation example 9

Belt installation 10

Causes of belt failure 11

Belt data

MXL 12

XL 13

L 14

H 15

T2,5 16

T5 - T5DL 17

T10 - T10DL 18

AT5 19

AT10 20

Megapower feasibility table 21

Coatings and cover properties 22

Special executions 23

Special executions photos 24

Pulleys and timing bars 26

Useful formulas and conversion table 28

2

INTRODUCTION TO MEGAPOWER BELTS

MEGADYNE began manufacturing transmission belts in

1957 and moulding MEGAPOWER belts in 1975.

MEGAPOWER timing belts are manufactured in ther-

moset polyurethane by a unique moulding process.

The thermoset polyurethane gives superior wear and

abrasion resistance. Several type of cords, helically

wound rolled up inside the belts, assure excellent dimen-

sional stability and offer high performances in terms of

flexibility and traction resistance.

MEGAPOWER belts are particularly suitable for power

transmission applications.

MEGAPOWER timing belt drives represent a modern and efficient system of power transmission. They combine the

advantages and properties of geared drives with those of Vee and Flat belts whilst eliminating the troubles typical of each

of these types of transmission.

MEGAPOWER drives allow:

Thanks to their features, Megapower belts can be successfully used in a wide range of applications such as:

• synchronous transmission

• constant and high angular speed

• excellent mechanical performance

• dimensional stability

• low noise

• low installation tension

..........• minimum drive dimensions

..........• omega drive configuration

..........• customised belt engineering

• computers tape movement

• office automation equipment

• medical equipment

• packaging machinery

• motor vehicles

• swimming pool cleaning robots

• plotters

• money changers

• optical instruments

• robotic arms

• electric appliances

• shower manual controls

• vacuum systems

• vending machines

• food machinery

• textile machinery

• leisure and do-it-yourself equipment

MEGAPOWER USE ADVANTAGES

MEGAPOWER APPLICATION AREAS

3

MEGAPOWER BELT SYSTEM SPECIFICATIONS

1) Pitch is the distance in millimetres between two adjacent teeth centers as measured on the pitch line of the belt; the

theoretical pitch line of a MEGAPOWER belt lies within the tensile member.

It is indicated with abbreviations like T5, AT5, T10, AT10, H. The correspondence between abbreviations and pitches are

indicated in the products pages.

2) Pitch length is the total length (circumference) in millimetres as measured along the pitch line.

On the pulley, the pitch line identifies the primitive diameter.

The primitive diameters of the driver (d1) and driven (d2) pulleys are the ones to be used for calculating the

transmission ratio

3) Width can vary depending on driving system needs.

To satisfy a wide range of loads, speeds and applications, MEGAPOWER belts and pulleys are made in a selection of

sizes, capacities and dimensions.

The three most significant dimensions of a belt are:

The imperial pitch belts follow ISO 5296-1 normative.

The T series driving systems follow the normative DIN-7721-1.

The ISO normative for AT series driving systems is under construction.

A belt is constituted by two components: the body in POLYURETHANE and a tension member represented by the CORDS

in steel, fiberglass, polyester and Kevlar.

Reference dimensions

pitch pitch length width

Belt pitch

STANDARD RANGE

MXL • XL • L • H

T2,5 • T5 • T10

T5DL • T10DL

AT5 • AT10

i = d2d1

4

CLASSIFICATIONS

CLASSIFICATIONS

Megapower Timing Belts are manufactured in thermoset polyurethane, with helically wound zinked steel. This type of

belts, developed by our Research & Development, offers good running characteristics and high traction loads. They are

especially suited for power transmission. An extra thickness of special coating is also possible on the back of the belt

offering extra protection against aggressive or heavy products.

1) The body of the belts is grey/green thermoset polyurethane 88 ShA, characterized by high levels of wear resistance even

in the presence of shock and surge loading. The thermoset polyurethane is obtained by mixing a prepolymer with a bond-

ing compound and heating the mixture. After cooling down to ambient temperature, the result is a polyurethane with good

chemical and mechanical characteristics giving the belt high performances and long lifetime.

2) High strength helically wound zinked steel tension members allow high breaking load and extremely low elongation.

The combination of these high grade materials improves belt performances which can be summarised as follows:

• exceptional resistance to abrasion and tooth shear

• low coefficient of friction

• high flexibility

• ozone and temperature resistance (-25 °C / +80 °C)

• oil, grease and gasoline resistance

MECHANICAL AND CHEMICAL CHARACTERISTICS

• Constant dimensions • Low pretension• Noiseless • Constant length• Free maintenance • High abrasion resistance• High flexibility • Ageing, Hydrolysis, Ozone resistant• High resistance steel traction cords, • Working temperature -25 °C / +80 °C

with little stretching and top flexibility • High resistance to Oils, Greases and Gasoline• Linear speeds up to 70 m/s • Fairly Acid-proof and Alkali-proof

BODY

Megapower belts are manufactured with grey/green thermoset polyurethane 88 ShA as standard.

Special compounds (different hardnesses, special properties) are available on request. Here under some PU characteristics:

Water No problem in normal or sea clean water, at room temperature. Over 60 ºC there is a fast decrease of

breaking strength.

Acids In acids diluted proportions, at room temperature, this PU is moderately attached. In high

concentration acid solutions, this PU has a very short lifespan. Over 50 ºC, acids are always

dangerous for thermoset PU.

Alkalis In alkalis diluted proportions, at room temperature, this PU is moderately attached. In high

concentration alkaline solutions, this PU has a very short lifespan.

Solvents Thermoset PU is insoluble in the greater part of solvents. Only the very polar solvents (same as

tetrahydrofuran, dimethylformamide, n-methylpyrrolidone) can dissolve or tight damage PU. The

esters or the ketons (same as ethylacetate or methylethylketene) can usually produce a bulge,

decreasing mechanical characteristics. The aromatic hydrocarbons and the aliphatic hydrocarbons

produce very high bulge.

Oils PU has a high resistance to mineral pure oils (lubrificants, engine oils, combustible oils). Usually, high per-

formance syntetic oils, due to special addictives contained, can be incompatible with thermoset PU, espe-

cially at high temperature.

Greases PU has a high resistance to pure mineral greases (lubrificants greases). Usually, high performance

syntetic greases, due to special addictives contained, can be incompatible with thermoset PU, espe-

cially at high temperature.

Fuels Good resistance to petrol without alcohols. In presence of alcohols, thermoset PU can suffer dete-

rioration. Fuels including aromatic stuffs can produce reversible bulges.

Microorganisms In presence of grime, containing humidity, microorganisms can develop. In case that microbic attack

can produce danger, you have to use a special kind of PU.

1 2

5

CLASSIFICATIONS

CORDS

Standard cord .....Megapower is manufactured with helicoidal zinked steel cords as standard.

Kevlar .....Kevlar tension cords are suggested for non magnetic, precisely for use in drives with metal

.....detectors, and they also are widely used in food industry.

HP .....High performance cords have 25% more strength capacity than standard cords. They are

.....recommended for high repeatability applications.

HF .....High flexibility cords can accept smaller pulley and idler diameters than standard cords. They are

.....suitable for multi-shaft drives with severe reverse bending.

HPF .....High performance and flexibility cords have 25% more strength capacity like the HP cords, but

.....they are more flexible than the HP cords. They are suggested for high performance and multi-shaft

.....drives.

Stainless steel .....Stainless steel cords have 25% less strength capacity than standard cords. They are recommended

.....for water applications.

Fiberglass and .....They combine particular mechanical characteristics, such as high flexibility, with resistance to water,

polyester cord .....wet and humid environments.

Special compound and cords have to be tested and homologated on application. Megadyne is not responsable for wrong

functioning of special products.

COATING

Megapower belts can be manufactured with special coatings, in order to fit many application with different requirements.

For feasability see table at page 21 and for properties see page 22.

IDENTIFICATION CODE

Using the information in the table below, it is possible to identify the correct belt for every application.

The code is composed of letters and numbers as the following example:

1) MPW Megapower timing belt.

2) 50 This number indicates the width of requested belt. The value is in mm for a belt with a pitch in mm,

and in inches for a belt with a pitch in inches.

3) AT This code composed by letters indicates the selection of profile.

4) 10 This number indicates the standard pitch of the belt. It is expressed in mm.

5) 1500 The last number indicates the length of the belt always in mm regardless of pitch.

6) SPECIAL MANUFACTURES:

• special cords as Kevlar or HP or HF or HPF or stainless steel or fiberglass or polyester

• special compound as different hardness or different colours

• extra coating

1 2 3 4 5 6

MPW + 50 + AT + 10 + 1500 + SPECIAL MANUFACTURES

6

POWER TRANSMISSION CALCULATION PROCEDURE

DETERMINATION OF BELT PITCH

The belt pitch can be determined with the belt selection chart at page 8 (for new applications we suggest AT profiles),referring to the speed of the small pulley.

DETERMINATION OF SPEED RATIO

The speed ratio represents the ratio of pulley speed n1 to n2, or pulley pitch diameter d2 to d1 or of number of teeth z2 to z1.

i = n 1 = z 2 = z 1

SELECTION OF REQUIRED TIMING PULLEYS

For the selection of the needed timing pulleys see belt data pages and pulleys catalogue.

CALCULATION OF REQUIRED BELT LENGTH

The belt length can be determined replacing your values in the following formula:

where

Symbol Unit Definition Symbol Unit Definition

t mm pitch FU N transmittable force

b mm belt width FP N pretension

Lw mm belt length i – speed ratio

c mm center distance n1, n2 RPM speed of driver/

driven pulley

ß arc of contact d1, d2 mm pitch diameter of driver/

driven pulley

C1, C2, C3, CTOT safety factors z1, z2 no. of teeth of driver/

driven pulley

P kW power zm no. of teeth in mesh

PR kW/cm transmittable power

each cm of tooth in mesh

Mta

Nm

m/s2drive torque

acceleration

Lw[mm]= 2·c·sin · ·+ 1-z1+z2+ ß

2

ß

180

t

2(z2-z1)

n1n2

ß= 2·arccost·(z2-z1)

2· ·c

d2d1

z2z1

Fp

d2

z1

cr2

aVn2

n2

ß

Mt

z2

Fu

7

POWER TRANSMISSION CALCULATION PROCEDURE

The actual belt length is to be taken from those available in the table (see belt page), the closest to the calculated Lw.

CALCULATION OF CENTER DISTANCE

The approximate center distance can be determined replacing your values in the following formula:

CHOICE OF SAFETY FACTOR

The total safety factor CTOT is the correction coefficient for the power (to be transmitted) to obtain the design power.

CTOT=C1+C2+C3

C1 is the Acceleration Factor, used when the inverse of speed ratio i is > 1,24

C2 is the Service Factor depending on the number of the operational hours per day (operation time)

1/i 1,00÷1,24 1,25÷1,74 1,75÷2,49 2,50÷3,49 >3,50

C1 0 0,1 0,2 0,3 0,4

h/day 8÷10 10÷16 16÷24 Intermittent Seasonal

C2 0 +0,1 +0,2 -0,1 -0,1

C3 is the Load Factor depending on the type of driver used by internal transmission of the driven machine.For C3 values see the table 1 at page 8.

DETERMINATION OF NUMBER OF TEETH IN MESH

The number of the teeth in mesh can be determined replacing your values in the following formula:

If calculated zm is above 15, consider zm=15 (maximum number of teeth in mesh)

DETERMINATION OF BELT WIDTH

The belt width is calculated using the transmittable power PR per tooth in mesh and per cm belt width (see table at beltpage).

c= Lw- ( z 1+ z 2 ) + 21

4

t

2Lw- (z1+z2) -2

t

2

2

( z 1- z 2 ) t

zm= z1·ß

360

b[mm]= P·CTOT·10

PR·zm

8

CALCULATION PARAMETERS

Office machinery

TypewritersComputers, printersTeleprinters, photocopiersMotion-picture projectors and camerasDomestic machinery

CentrifugesKitchen appliances, universal slicersSewing machines

Domestic sewing machinesIndustrial sewing machinesLaundry machinery

DriersWashing machinesBakery machinery and dough mixersConveyors

Light-duty belt conveyorsBelt conveyor for ore, coal, sandHeavy duty conveyorsElevators, screw conveyorsBucket elevatorsAgitators

Mixers for liquidsMixers for semi-liquidsMachine tools

LathesDrills and grindersMillers and planersWoodworking machinery

Lathes and band sawsPlaners and disk saws

Type A: electric motors with low starting torque (up to 1,5 times the rated torque).

Type B: electric motors with normal starting torque (1,5 to 2,5 times the rated torque).

Type C: electric motors with high starting and breaking torque (over 2,5 times the related torque).

Sawmill machineryBrick machinery

MixersPug millsTextile machinery

Spoolers and warping machinesSpinning and twisting machinesPaper machinery

Agitators, calenders, driersPumps, beaters, pulpersPrinting machinery

Linotype machines, cutters, foldersRotary pressesScreens

Drum screensVibrating screensFans, Blowers

Exhauster, radial blowersMine ventilators, axial blowersCompressors

Helical compressorsPiston compressorsPumps

Centrifugal and gear pumpsReciprocating pumpsGenerators and excitersElevators and hoistsCentrifugesRubber machineryMills

Hammer millsBall, roller and gravel mills

11,11,11

11,1

1,11,2

1,21,41,2

1,11,21,41,41,4

1,21,3

1,21,31,3

1,21,2

1,21,31,31,2

1,21,3

1,31,4

1,61,81,6

1,31,61,81,81,8

1,61,7

1,61,71,7

1,51,6

1,4

1,41,6

1,21,3

1,21,4

1,21,3

1,21,3

1,41,6

1,41,6

1,21,71,41,41,51,5

1,51,7

1,8

1,82

1,61,7

1,61,8

1,61,7

1,61,7

1,82

1,62

1,62,11,81,81,91,9

1,92,1

Driver

Type A Type B Type C Type A Type B Type C

DriverDriven Machine Driven Machine

1,11,21,21,2

1,11,2

1,21,3

1,41,61,4

1,21,41,61,61,6

1,41,5

1,41,51,5

1,31,4

1,6

1,61,8

1,41,5

1,41,6

1,41,5

1,41,5

1,61,8

1,51,8

1,41,91,61,61,71,7

1,71,9

BELT SELECTION CHART

Table 1 - Load Factor C3

9

BELT CALCULATION EXAMPLE

DRIVER DATA

electric motor P=2kW

n=3000RPM

Low starting torque

MACHINE DATA

Wood working machine

N=900RPM

Max diameter driven pulley 110mm

c=300mm

DETERMINATION OF BELT PITCH

According Belt selection chart at page 8, considering values of P=2kW and n=3000RPM, it is possible to choose T5

AT5 L T10 or AT10.

We choose T10.

DETERMINATION OF SPEED RATIO

i=n1/n2= 3000/900= 3.33

SELECTION OF REQUIRED TIMING PULLEYS

According page 18 we choose z2=36 d2=108.36mm

and from page 18 we choose pulley diameter is for z1=12

Actual speed ratio

CALCULATION OF REQUIRED BELT LENGTH

ß=166° and L=845mm

From page 18, closest length to calculates is LW= 850mm.

CALCULATION OF CENTER DISTANCE

The approximate center distance: c=302.6mm

CHOICE OF SAFETY FACTOR

From table page 7, we select C1=0.3 c2=0

From Table page 8, we select C3=1.2

So CTOT= 1.5

DETERMINATION OF NUMBER OF TEETH IN MESH

The number of the teeth in mesh can be determined replacing your values in the following formula:

zm=z*ß/360=5

DETERMINATION OF BELT WIDTH

From page 18, for z=12 and n=3000 PR=0.127kW so

From page 18, closest width is 50mm

The choice for transmission is belt 50 T10 850, driver pulley 56T10 12 and driven pulley 56 T10 36

Fp

d2

z1

cr2

aVn2

n2

ß

Mt

z2

i = n1n2

= 3.33= 3000

900

= 3= 36

12i =

z2z1

Fu

= 5zm = z*ß

360

= 47.24mmb = P*CTOT*10

PR*zm

= 32.54mmd1 = d2

i= 108.36

3.33

10

BELT INSTALLATION

The pretension force is the load which has to be applied

to the center of one of the driving system's pulleys in static con-

ditions to avoid the derailing of the belt.

For:

FP= ß

2·Fv • sen 2

Fv= • Fu1

3

MEASURING PROCEDURE

CALCULATION OF PRETENSION FORCE FP

m = belt mass per unit length (kg/m) t = free belt span length in meters (m)

Ts = static tension (N) f = frequency of vibration (Hz)

The procedure to measure the tension of the belt is to use a Belt Tensioning

Gauging Equipment. This device consists of a small sensing head which is

held across the belt to be measured. The belt is then tapped to induce the

belt to vibrate at its natural frequency. The vibrations are detected and the

frequency of vibration is than displayed on the measuring unit.

The relation between belt static tension (Ts) and frequency of vibration (f)

may be calculated using the following formula:

or

• z<60

Fv= • Fu1

2• 60<z<150

Fv= • Fu2

3• z>150

where FU= 60 • 106 • P • sin

t • n1 • z1

ß

2

f= • 1

2t

Tsm

Ts= 4 • m • t 2 • f 2

Fp

d2

z1

cr2

aVn2

n2

ß

Mt

z2

Fu

For a correct system functioning and to increase belt life, it is necessary a correct pulley installation: pulleys has to be parallel

and aligned as shown in drawing 1 (correct configuration).

If pulleys are not parallel as in drawing 2, belt could fall during functioning and this can provoke damages to complete equipment.

To grant a correct belt running, and x must be as smaller as possible. For more information, please contact our technicalstaff.

Drawing 1 Drawing 2 Drawing 3

11

CAUSES OF BELT FAILURE

To ensure that the performance and durability of a toothed belt drive will fully meet requirements of a particular applica-

tion, it is necessary firstly ti accurately select the drive and then to make sure the drive is correctly installed. If this pro-

cedure is not followed, the drive life and efficiency may be considerably reduced. The most frequent

problems encountered and their probable causes are listed in the table below.

Problems Causes Corrective actions

Abnormal wear of the belt:

a) on the side of the tooth

Belt excessively taut Reduce centre distance

Excessive overloading Use a wider belt

Incorrect contour or diameter of pulleyReplace pulley after checking contour or

diameter

b) on the bottom of the tooth Excessive installation tension Reduce centre distance

c) at the tooth root Incorrect diameter of pulleyReplace pulley after checking

diameter

d) on the side of the belt

Incorrect contour or diameter of pulleyReplace pulley after checking

contour or diameter

Misalignment or wrong setting

of pulleys

Replace pulley after checking

contour or diameter

Oscillation of the axes and/or

of the bearings

Correct the positioning of the

pulleys and reinforce the bearings

Flanges bent Straighten flanges

Failure through traction or through

laceration of the teeth, indicating

corrosion of the tension member

Diameter of small pulley

i.e. below the minimum

Increase the diameter of the pulleys or use

belts and pulleys of smaller pitch

Excessive moisture Eliminate the moisture

Laceration of belt teethNumber of teeth in mesh less than six

Increase the number of teeth in mesh or

use belts and pulleys of smaller pitch

Excessive load Use a wider belt

Rupture of tension memberExcessive load Use a wider belt

Diameter of pulley below minimum Increase the diameter of the pulleys

Breaks or cracks in the top surface

of the belt

Exposure to excessively low

temperatures (below -25° C)Eliminate the low temperature

Softening of the top surface

of the belt

Exposure to excessively high

temperatures (below +85° C)

or operation with excessive amount

of oil present

Eliminate the high temperature or

reduce the amount of oil present

Apparent elongation of the beltReduction of centre distance due

to bearings not being firmly fixed

Restore the initial centre distance

and strengthen the bearings

Belt overriding the flangesFaulty installation of the flanges Reinstall the flanges correctly

Misalignment of pulleys Align pulleys

Excessive wear of pulley teeth

Excessive overloading Use a wider belt

Belt excessively taut Reduce the centre distance

Pulley material insufficiently hard Harden the pulley surface

Drive excessively noisy

Pulleys out of line Align pulleys

Excessive installation tension Reduce the centre distance

Excessive load Use a wider belt

Diameter of pulley below minimum Increase the diameter of the pulleys

12

MEGAPOWER MXL

BELT CHARACTERISTICS

Standard compound: Thermoset PU 88 ShA grey/green

Standard cords: Twisted Zinked Steel

Standard width tolerance: + 0,50 / - 0,80 mm

Standard thickness tolerance: +/- 0,20 mm

Special version belts on request, see page 21

BELT WIDTH (mm) 3,2 (012”) 4,8 (019”) 6,4 (025”)

PULLEY WIDTH B2 (mm) 5,6 7,1 8,9

BELT WEIGHT (gr/cm) 0,035 0,053 0,073

TRANSMITTABLE POWER (kW/cm of tooth in mesh)

PULLEYS (for more details see our pulleys catalogue)

BELT LENGTHS AND TOLERANCES (according ISO 5296-1)

No. teeth

10121314151617181920212224

Dp

6,477,768,419,069,7010,3511,0011,6412,2912,9413,5814,2315,52

De

5,967,257,908,559,199,8410,4911,1311,7812,4313,0713,7215,01

No. teeth

26283032343640424448606572

Dp

16,8118,1119,4020,7021,9923,2925,8727,1728,4631,0538,8142,0446,57

De

16,3017,6018,8920,1921,4822,7825,3626,6627,9530,5438,3041,5346,06

n\z

600

800

1000

1400

1800

2000

3000

4000

5000

8000

10

0,001370,001720,002040,002650,003200,003460,004650,005680,006590,00886

12

0,001640,002060,002450,003180,003840,004160,005580,006810,007910,01063

14

0,001910,002400,002860,003710,004480,004850,006510,007950,009230,01240

16

0,002180,002750,003270,004240,005130,005540,007440,009080,010550,01417

18

0,002460,003090,003680,004770,005770,006240,008370,010220,011870,01594

20

0,002730,003430,004090,005300,006410,006930,009300,011360,013190,01771

24

0,003280,004120,004910,006360,007690,008310,011150,013630,015830,02125

26

0,003550,004460,005320,006890,008330,009010,012080,014760,017150,02302

28

0,003820,004810,005730,007420,008970,009700,013010,015900,018460,02480

30

0,004100,005150,006130,007950,009610,010390,013940,017030,019780,02657

32

0,004370,005490,006540,008480,010250,011090,014870,018170,021100,02834

36

0,004910,006180,007360,009540,011530,012470,016730,020440,023740,03188

40

0,005460,006860,008180,010600,012810,013860,018590,022710,026380,03542

Code

Length (mm)

No. of teeth

Length tolerance (mm)

44

111,755

45,6

115,857

48

121,960

56

142,270

57,6

146,372

60

152,475

60,8

154,476

63,2

160,579

64

162,580

65,6

166,682

70,4

178,888

72,8

184,991

73,6

186,992

76,8

195,196

80,8

205,2101

+/- 0,28

Code

Length (mm)

No. of teeth


81,6

207,2102

82,4

209,2103

84

213,3105

88

223,5110

91,2

231,6114

94,4

239,7118

96

243,8120

104

264,1130

105,6

268,2132

108

274,3135

112

284,4140

116

294,6145

120

304,8150

124

314,9155

140

355,6175

152

386,1190

Code

Length (mm)

No. of teeth


160

406,4200

176,8

449,1221

204,8

520,1256

224

568,9280

228

579,1285

246,4

625,8308

265,6

674,6332

281,6

715,2352

288

731,5360

316

802,6395

324

822,9405

329,6

837,1412

345,6

877,8432

363,2

922,5454

388

985,5485

+/- 0,28 +/- 0,32

+/- 0,36 +/- 0,42 +/- 0,48 +/- 0,56

pppp

p

pp pp p pp pp

13

MEGAPOWER XL




Standard width tolerance: + 0,50 / - 0,80 mm



BELT WIDTH (mm) 6,4 (025”) 7,9 (031”) 9,4 (037”)

PULLEY WIDTH B2 (mm) 8,9 10,4 12,2

BELT WEIGHT (gr/cm) 0,121 0,153 0,182




No. teeth

101112131415161718202224

Dp

16,1717,7919,4021,0222,6424,2625,8727,4929,1132,3435,5738,81

De

15,6617,2818,8920,5122,1323,7525,3626,9828,6031,8335,0738,30

No. teeth

262830323640424448566072

Dp

42,0445,2848,5151,7458,2164,6867,9171,1577,6290,5597,02116,43

De

41,5344,7748,0051,2357,7064,1767,4070,6477,1190,0496,51115,92

n\z

100

200

600

1000

1500

2000

3000

4000

5000

8000

10

0,00160,00290,00750,01160,01620,02060,02860,03590,04270,0612

12

0,00190,00350,00910,01390,01950,02470,03430,04310,05130,0735

14

0,00220,00410,01060,01620,02270,02880,04000,05020,05980,0857

16

0,00260,00470,01210,01860,02600,03290,04570,05740,06840,0980

18

0,00290,00530,01360,02090,02920,03700,05140,06460,07690,1102

20

0,00320,00590,01510,02320,03250,04110,05710,07180,08550,1225

24

0,00380,00700,01810,02780,03900,04940,06850,08610,10260,1470

28

0,00450,00820,02110,03250,04550,05760,07990,10050,11970,1715

32

0,00510,00940,02410,03710,05200,06580,09140,11480,13680,1960

40

0,00640,01170,03020,04640,06500,08230,11420,14350,17100,2450

48

0,00770,01410,03620,05570,07800,09880,13700,17220,20510,2940

60

0,00960,01760,04530,06960,09750,12340,17130,21530,25640,3675

72

0,01150,02110,05430,08350,11700,14810,20560,25840,30770,4410

Code

Length (mm)

No. of teeth


60

152,430

70

177,835

76

19338

80

230,240

90

228,645

100

25450

110

279,455

120

304,860

130

330,265

134

340,367

140

355,670

150

38175

160

406,480

+/- 0,28 +/- 0,32 +/- 0,36

Code

Length (mm)

No. of teeth


170

431,885

180

457,290

190

482,695

194

492,7 97

200

508100

210

533,4105

220

558,8110

230

584,2115

240

609,6120

250

635125

260

660,4130

270

685,8135

288

731,5144

290

736,6145

300

762150

356

904,2178

414

1051,5207

Code

Length (mm)

No. of teeth


450

1143225

566

1437,6283

+/- 0,36 +/- 0,42 +/- 0,48 +/- 0,56 +/- 0,64

+/- 0,64 +/- 0,76

pppp

p

pp pp p pp pp

14

MEGAPOWER L




Standard width tolerance: +/- 0,80 mm



BELT WIDTH (mm) 12,7 (050”) 19,1 (075”) 25,4 (100”)

PULLEY WIDTH B2 (mm) 19 25,4 29,7

BELT WEIGHT (gr/cm) 0,437 0,661 0,878




No. teeth

101112131416182022242628

Dp

30,3233,3536,3839,4142,4548,5154,5760,6466,7072,7778,8384,89

De

29,5632,5935,6238,6541,6947,7553,8159,8865,9472,0178,0784,13

No. teeth

303234364042444852566072

Dp

90,9697,02103,08109,15121,28127,34133,40145,53157,66169,79181,91218,30

De

90,2096,26102,32108,39120,52126,58132,64144,76156,90169,03181,15217,54

n\z

100

200

600

1000

1500

2000

3000

4000

5000

8000

10

0,00500,00890,02190,03280,04470,05530,07410,09030,10470,1399

12

0,00600,01070,02630,03930,05360,06640,08890,10840,12560,1679

14

0,00700,01250,03070,04590,06250,07750,10370,12640,14660,1958

16

0,00790,01430,03510,05240,07150,08850,11850,14450,16750,2238

18

0,00890,01610,03940,05900,08040,09960,13330,16260,18850,2518

20

0,00990,01780,04380,06550,08940,11070,14820,18060,20940,2798

22

0,01090,01960,04540,07210,09830,12180,16300,19870,23030,3078

24

0,01190,02140,04820,07860,10720,13280,17780,21680,25130,3357

28

0,01390,02500,05300,09170,12510,15500,20740,25290,29320,3917

30

0,01490,02680,05680,09830,13400,16600,22220,27090,31410,4197

32

0,01590,02850,06060,10480,14300,17710,23700,28900,33500,4477

36

0,01790,03210,06810,11790,16080,19920,26670,32510,37690,5036

40

0,01990,03570,07570,13110,17870,22140,29630,36130,41880,5596

Code

Length (mm)

No. of teeth


86

218,623

+/- 0,28

124

314,333

150

38140

173

438,246

187

476,250

+/- 0,36

202

514,454

210

533,456

225

571,560

+/- 0,42

240

609,664

255

647,768

270

685,872

285

723,976

300

76280

322

819,286

345

876,392

+/- 0,56

367

933,498

+/- 0,32 +/- 0,48

Code

Length (mm)

No. of teeth


390

990,6104

420

1066,8112

450

1143120

480

1219,2128

510

1295,4136

540

1371,6144

570

1447,8152

600

1524160

+/- 0,64 +/- 0,76

pppp

p

pp pp p pp pp

15

MEGAPOWER H







BELT WIDTH (mm) 19,1 (075”) 25,4 (100”) 38,1 (150”) 50,8 (200”) 76,2 (300”)

PULLEY WIDTH B2 (mm) 25,4 29,7 46 59 85

BELT WEIGHT (gr/cm) 0,745 1,059 1,594 2,121 3,194




No. teeth

141516182021222324252628

Dp

56.6060.6464.6872.7780.8584.8988.9492.9897.02101.06105.11113.19

De

55.2359.2763.3171.4079.4883.5287.5791.6195.6599.69103.74111.82

No. teeth

303234363840444852586072

Dp

121.28129.36137.45145.53153.62161.70177.87194.04210.21234.47242.55291.06

De

119.91127.99136.08144.16152.25160.33176.50192.67208.84233.10241.18289.69

n\z

100

200

600

1000

1500

2000

3000

4000

5000

8000

14

0,01280,02290,05630,08420,11490,14230,19050,23220,26920,3597

16

0,01420,02550,06260,09360,12760,15810,21160,25800,29910,3997

18

0,01630,02930,07200,10770,14680,18180,24340,29680,34400,4597

20

0,01850,03310,08140,12170,16590,20560,27510,33550,38890,5196

22

0,01990,03570,08760,13110,17870,22140,29630,36130,41880,5596

24

0,02130,03820,09390,14040,19150,23720,31750,38710,44870,5995

26

0,02340,04210,10330,15450,21070,26090,34930,42580,49360,6595

28

0,02550,04590,11270,16850,22980,28460,38100,46450,53840,7194

30

0,02770,04970,12210,18260,24900,30840,41280,50320,58330,7794

32

0,02930,05260,12910,19310,26330,32620,43660,53220,6170

36

0,03410,06110,15020,22470,30640,37950,50800,61930,7179

40

0,03620,06500,15960,23870,32560,40320,53980,65800,7628

44

0,03940,07090,17410,26030,35500,43970,58860,71760,8319

Code

Length (mm)

No. of teeth


230

584,246

240

609,648

270

685,854

300

76260

330

838,266

360

914,472

390

990,678

420

1066,884

450

114390

480

1219,296

510

1295,4102

+/- 0,42 +/- 0,56 +/- 0,64 +/- 0,76 +/- 0,88

pppp

p

pp pp p pp pp

16

MEGAPOWER T2,5









BELT LENGTHS AND TOLERANCES (according DIN 7721-1)

No. teeth

101112131415161718192021

Dp

7,968,759,5510,3411,1411,9412,7313,5314,3215,1215,9216,71

De

7,458,259,009,8010,6011,4012,2013,0013,8014,6015,4016,20

No. teeth

222426283032364044486072

Dp

17,5119,1020,6922,2823,8725,4628,6531,8335,0138,2047,7557,30

De

17,0018,5520,1521,7523,3524,4528,1031,3034,5037,7047,2555,20

n\z

600

800

1000

1400

1600

2000

3000

4000

5000

8000

10

0,001950,002450,002920,003790,004190,004950,006640,008110,009420,01265

12

0,002340,002940,003510,004540,005030,005940,007970,009730,011300,01518

14

0,002730,003430,004090,005300,005860,006930,009300,011360,013190,01771

16

0,003120,003920,004670,006060,006700,007420,010620,012980,015070,02024

18

0,003510,004410,005260,006810,007540,008910,011950,014600,016960,02277

20

0,003900,004900,005800,007570,008380,009900,013280,016220,018840,02530

22

0,004290,005390,006420,008330,009220,010890,014610,017850,020730,02783

24

0,004680,005880,007000,009090,010050,011880,015940,019470,022610,03036

26

0,005070,006370,007590,009840,010890,012870,017260,021090,024490,03289

28

0,005460,006860,008170,010600,011730,013860,018590,022710,026380,03542

30

0,005850,007360,008770,011360,012570,014850,019920,024330,028260,03795

36

0,007020,008830,010520,013630,015080,017820,023900,029200,033910,04554

40

0,00780,009810,011690,015140,016760,019800,026560,032450,037680,05060

Length (mm)

No. of teeth


120

48145

58160

64177,5

71180

72182,5

73200

80210

84230

92245

98265

106277,5

111285

114290

116305

122317,5

127330

132342,5

137380

152+/- 0,28 +/- 0,32

Length (mm)

No. of teeth


420

168480

192500

200540

216600

240620

248650

260680

272700

280780

312880

352915

366950

3801185

474+/- 0,36 +/- 0,42 +/- 0,48 +/- 0,56 +/- 0,64

BELT WIDTH (mm) 4 6 8 10 12

PULLEY WIDTH B2 (mm) 8 10 12 14 16

BELT WEIGHT (gr/cm) 0,046 0,070 0,093 0,120 0,143

pp

pp

p

pp pp p pp pp

17

MEGAPOWER T5 - T5DL

Length (mm)

No. of teeth


1470

2941500

3001580

3161955

391


DOUBLETOOTHED BELT LENGTHS








* Available also without GAP


n\z

100

200

600

1000

1500

2000

3000

4000

5000

8000

10

0,00170,00310,00790,01220,01710,02170,03010,03780,04500,0645

12

0,00200,00370,00950,01470,02050,02600,03610,04530,05400,0774

14

0,00240,00430,01110,01710,02390,03030,04210,05290,06300,0903

16

0,00270,00490,01270,01950,02740,03460,04810,06040,07200,1032

18

0,00300,00560,01430,02200,03080,03900,05410,06800,08100,1160

20

0,00340,00620,01590,02440,03420,04330,06010,07550,09000,1289

24

0,00400,00740,01910,02930,04110,05200,07210,09070,10800,1547

28

0,00470,00860,02220,03420,04790,06280,08420,10580,12600,1805

36

0,00610,01110,02860,04400,06160,07800,10820,13600,16200,2321

42

0,00710,01300,03330,05130,07180,09100,12620,15860,18890,2708

48

0,00810,01480,03810,05860,08210,10390,14430,18130,21590,3095

54

0,00910,01670,04290,06590,09240,11690,16230,20400,24290,3481

60

0,01010,01850,04760,07330,10260,12990,18030,22660,26990,3868

Length (mm)

No. of teeth


410

82460

92515

103525

105550

110590

118620

124685

137700

140750

150815

163840

168860

172940

1881100

220+/- 0,36 +/- 0,42 +/- 0,48 +/- 0,56 +/- 0,64

Length (mm)

No. of teeth


120

24150

30165

33180

36185

37200

40210

42215

43220

44225

45245

49250

50255

51260

52270

54275

55280

56295

59300

60305

61+/- 0,28

+/- 0,32 +/- 0,36

Length (mm)

No. of teeth


545

109550

110560*112

575

115590

118600

120610

122620

124630

126640

128650

130660

132675

135690

138700

140720

144725

145750

150765

153780

156800

160815

163

Length (mm)

No. of teeth


830

166840

168850

170860

172885

177900

180920

184940

188990

1981075

2151100

2201160

2321200

2401215

2431275

2551280

2561315

2631355

2711380

2761440

288

+/- 0,42 +/- 0,48 +/- 0,56

+/- 0,56 +/- 0,64 +/- 0,76

+/- 0,76 +/- 0,88

BELT WIDTH (mm) 6 8 10 12 16 20 25

PULLEY WIDTH B2 (mm) 12 13 15 17 21 25 30

BELT WEIGHT (gr/cm) 0,116 0,152 0,194 0,237 0,249 0,390 0,497

No. teeth

101214151618192022242526

Dp

15,9219,1022,2823,8725,4628,6530,2431,8335,0138,2039,7941,38

De

15,0918,2721,4523,0424,6427,8229,4131,0034,1937,3738,9640,55

No. teeth

2728303236404244485460

Dp

42,9744,5647,7550,9357,3063,6666,8570,0376,3985,9495,49

De

42,1443,7346,9250,1056,4762,9366,0269,2075,5785,0994,67

pp

pp

p

pp pp p pp pp

Length (mm)

No. of teeth


330

66340

68350

70355

71365

73375

75390

78400

80410

82420

84425

85440

88445

89450

90455

91460

92475

95480

96500

100510

102515*

103525

105395

79

18

MEGAPOWER T10 - T10DL







BELT WIDTH (mm) 10 12 16 20 25 32 50 75

PULLEY WIDTH B2 (mm) 15 17 21 25 30 37 56 80

BELT WEIGHT (gr/cm) 0,494 0,504 0,683 0,861 1,082 1,386 2,174 3,276

DOUBLETOOTHED BELT LENGTHS



* Available also without GAP


No. teeth

1214151618192022242526

Dp

38,2044,5647,7550,9357,3060,4863,6670,0376,3979,5882,76

De

36,2542,7145,9049,0855,4558,6361,8168,1874,5577,7380,91

No. teeth

27283032364044485460

Dp

85,9489,1395,49101,86114,59127,32140,06152,79171,89190,99

De

84,1087,2893,65100,01112,74125,48138,21150,94170,03189,14

n\z

100

200

600

1000

1500

2000

3000

4000

5000

8000

12

0,00850,01530,03760,05620,07660,09490,12700,15480,17950,2398

14

0,00990,01780,04380,06550,08940,11070,14820,18060,20940,2798

16

0,01140,02040,05010,07490,10210,12650,16930,20640,23930,3198

18

0,01280,02290,05630,08420,11490,14230,19050,23220,26920,3597

20

0,01420,02550,06260,09360,12760,15810,21160,25800,29910,3997

22

0,01560,02800,06890,10300,14040,17390,23280,28380,32900,4397

24

0,01700,03060,07510,11230,15320,18970,25400,30970,35900,4796

26

0,01850,03310,08140,12170,16590,20560,27510,33550,38890,5196

28

0,01990,03570,08760,13110,17870,22140,29630,36130,41880,5596

30

0,02130,03820,09390,14040,19150,23720,31750,38710,44870,5995

36

0,02550,04590,11270,16850,22980,28460,38100,46450,53840,7194

48

0,03410,06110,15020,22470,30640,37950,50800,61930,7179

54

0,03830,06880,16900,25270,34470,42690,57150,69670,8077

Length (mm)

No. of teeth


260

26530

53630

63660

66700

70720

72800

80840

84900

90920

92980

981010

1011100

1101150

1151210

1211240

1241250

1251320

1321350

1351420

1421610

1611880

188

+/- 0,28 +/- 0,42 +/- 0,48 +/- 0,56 +/- 0,64 +/- 0,76 +/- 0,88

Length (mm)

No. of teeth


260

26320

32340

34370

37390

39400

40410

41440

44450

45480

48500

50530

53550

55560

56600*

60610

61630*

63650

65660

66680

68690

69+/- 0,32 +/- 0,36 +/- 0,42 +/- 0,48

Length (mm)

No. of teeth


700

70720*

72730

73750

75780

78800*

80810

81840

84850

85880

88890

89900*

90910

91920*

92950

95960

96970

97980

981000

1001010

1011050

105+/- 0,48 +/- 0,56 +/- 0,64

Length (mm)

No. of teeth


1080

1081100

1101110

1111140

1141150

1151200

1201210

1211240

1241250

1251300

1301320

1321350

1351390

1391400

1401420

1421440

1441450

1451460

1461500

1501560

156

Length (mm)

No. of teeth


1600

1601610

1611700

1701750

1751780

1781880

1881960

1962250

225

+/- 0,64 +/- 0,76

+/- 0,88 +/- 1,04

pppp

p

pp pp p pp pp

19

MEGAPOWER AT5







BELT WIDTH (mm) 6 8 10 12 16 20 25

PULLEY WIDTH B2 (mm) 12 13 15 17 21 25 30

BELT WEIGHT (gr/cm) 0,185 0,253 0,316 0,378 0,508 0,640 0,800




No. teeth

1214151618192022242526

Dp

19,122,2823,8725,4628,6530,2431,8335,0138,2039,7941,38

De

17,8721,0522,6424,2427,4229,0130,6033,7936,9738,5640,15

No. teeth

2728303236404244486068

Dp

42,9744,5647,7550,9357,3063,6666,8570,0376,3995,49108,23

De

41,7443,3346,5249,7056,0762,4365,6268,8075,1794,27107,01

n\z

100

200

600

1000

1500

2000

3000

4000

5000

8000

12

0,00270,00490,01270,01950,02740,03470,04830,06090,07270,1046

14

0,00310,00570,01480,02280,03200,04050,05640,07100,08480,1220

16

0,00360,00650,01690,02600,03650,04630,06450,08120,09690,1395

18

0,00400,00740,01900,02930,04110,05210,07250,09130,10900,1569

20

0,00440,00820,02110,03250,04570,05790,08060,10150,12110,1743

22

0,00490,00900,02320,03580,05020,06370,08860,11160,13320,1918

24

0,00530,00980,02530,03900,05480,06950,09670,12180,14530,2092

26

0,00570,01060,02740,04220,05930,07530,10470,13190,15740,2266

28

0,00620,01140,02950,04550,06390,08110,11280,14210,16950,2441

32

0,00710,01310,03380,05200,07300,09260,12890,16240,19380,2790

44

0,00980,01800,04640,07160,10040,12740,17730,22330,26640,3836

60

0,01330,02450,06330,09760,13700,17370,24170,30450,36330,5230

68

0,01510,02780,07170,11060,15520,19690,27390,34510,41170,5928

Length (mm)

No. of teeth


225

45255

51275

55280

56300

60330

66340

68375

75390

78420

84450

90455

91480

96500

100525

105545

109600

120610

122620

124630

126+/- 0,28 +/- 0,32 +/- 0,36 +/- 0,42

Length (mm)

No of teeth


660

132670

134710

142720

144750

150780

156825

165860

172975

1951050

2101125

2251500

3002000

400+/- 0,48 +/- 0,56 +/- 0,64 +/-0,76 +/-1,04

pppp

p

pp pp p pp pp

20

MEGAPOWER AT10







BELT WIDTH (mm) 10 12 16 20 25 32 50 75

PULLEY WIDTH B2 (mm) 15 17 21 25 30 37 56 80

BELT WEIGHT (gr/cm) 0,578 0,707 0,952 1,184 1,469 1,905 3,005 4,344




No. teeth

1516181920222425262728

Dp

47,7550,9357,3060,4863,6670,0376,3979,5882,7685,9489,13

De

45,9049,0855,4558,6361,8168,1874,5577,7380,9184,1087,28

No. teeth

30323638404244485460

Dp

95,49101,86114,59120,96127,32133,69140,06152,79171,89190,99

De

93,65100,01112,74119,14125,48131,87138,21150,94170,07189,14

n\z

100

200

600

1000

1500

2000

3000

4000

5000

8000

15

0,01380,02510,06330,09610,13310,16690,22810,28310,33350,4648

18

0,01660,03010,07590,11540,15970,20030,27370,33970,40020,5578

20

0,01840,03350,08440,12820,17740,22250,30420,37750,44470,6198

22

0,02030,03680,09280,14100,19520,24480,33460,41520,48910,6818

24

0,02210,04020,10120,15380,21290,26700,36500,45300,53360,7438

26

0,02400,04350,10970,16660,23070,28930,39540,49070,57810,8057

28

0,02580,04690,11810,17940,24840,31160,42580,52850,62250,8677

30

0,02760,05020,12660,19230,26610,33380,45620,56620,66700,9297

38

0,03500,06360,16030,24350,33710,42280,57790,71720,8449

42

0,03870,07030,17720,26920,37260,46730,63870,79270,9338

48

0,04420,08040,20250,30760,42580,53410,73000,9060

54

0,04980,09040,22780,34610,47910,60090,82121,0192

60

0,05530,10040,25310,38450,53230,66760,91251,1325

Length (mm)

No. of teeth


370

37500

50560

56580

58600

60610

61630

63660

66700

67730

73780

78800

80810

81840

84880

88890

89920

92960

96980

981000

1001010

101+/- 0,32 +/-0,36 +/- 0,42 +/- 0,48 +/- 0,56 +/- 0,64

Length (mm)

No. of teeth


1050

1051080

1081100

1101150

1151190

1191200

1201210

1211220

1221230

1231240

1241250

1251280

1281300

1301320

1321350

1351360

1361400

1401420

11421480

11481500

1150+/- 0,64 +/- 0,76

Length (mm)

No. of teeth


1600

1601630

1631700

1701720

1721800

1801860

1861940

194+/- 0,88

pppp

p

pp pp p pp pp

21

MEGAPOWER FEASIBILITY TABLE

O = Ex stock M = On request with minimum quantity

R = On request without minimum quantity X = Not available

MXL XL L H T2,5T2 T5 T10 T5DL T10DL AT5 AT10

Steel cords

High Flexibility cords

High Performance cords

High Performance Flexibility

Kevlar cords

Fiberglass cords

Polyester cords

Stainless steel cords

Pu yellow coating 50 ShA cover

Porol mousse 10 ShA cover

Linatex 42 ShA cover

Tenax 40 / 45 ShA cover

White alimentary rubber 70 ShA cover

Neoprene rubber 70 ShA cover

Gummy correx 48 ShA cover

NBR 70 ShA cover

Hypalon 60 ShA cover

Honey comb 45 ShA cover

O

X

X

X

R

X

X

X

O

X

X

X

R

R

X

M

O

X

X

X

R

M

X

M

O

X

X

X

M

M

X

M

O

X

M

X

M

X

X

X

O

M

M

M

M

M

X

M

O

M

M

M

M

M

X

M

O

M

X

X

M

X

X

M

O

M

X

X

M

X

X

M

O

M

M

M

M

X

X

M

O

M

M

M

M

X

X

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

M

10

18

20

-

-

-

-

-

-

-

-

-

10

30

30

-

-

-

-

-

-

-

-

-

15

60

60

-

-

-

-

-

-

-

-

-

14

80

60

-

-

-

-

-

-

-

-

-

10

18

20

-

-

-

15

30

30

-

-

-

10

30

30

10

30

30

15

40

60

12

30

30

12

60

60

12

50

50

15

100

100

14

80

80

10

30

30

10

30

30

-

-

-

-

-

-

12

60

60

12

50

50

-

-

-

-

-

-

15

60

25

12

40

25

25

60

40

20

40

40

15

120

50

15

80

50

25

150

80

16

100

60

Min no. teeth pulley st. cords

Min outside idler dia

Min inside idler dia

Min no. teeth pulley HF cords



Min no. teeth pulley HP cords



Min no. teeth pulley HPF cords



12

20

20

-

-

-

-

-

-

-

-

-

10

30

20

13

35

35

-

-

-

13

35

35

15

60

60

18

65

65

-

-

-

18

65

65

14

80

60

18

90

65

-

-

-

18

80

65

12

20

20

-

-

-

-

-

-

-

-

-

12

30

30

15

40

40

-

-

-

15

40

40

15

60

60

15

70

70

-

-

-

15

70

70

12

30

30

-

-

-

-

-

-

15

40

40

15

60

60

-

-

-

-

-

-

15

70

70

15

60

25

-

-

-

-

-

-

15

65

60

15

120

50

-

-

-

-

-

-

19

110

110

Min no. teeth pulley kevlar cords



Min no. teeth pulley fiberglass cords



Min no. teeth pulley polyester cords



Min no. teeth pulley stainless steel cords



10

18

20

-

-

-

-

-

-

-

-

-

12

20

20

-

-

-

-

-

-

-

-

-

O

X

X

X

M

X

X

X

M

M

M

M

M

M

M

M

M

M

22

COATINGS AND COVER PROPERTIES

Megapower timing belts can be coated with several materials on the back side

to obtain specific properties required (higher friction coefficient, higher abrasion

reistance, higher oil resistance, etc.).

Cover type

open cellneoprenerubber

naturalrubber

naturalrubber

naturalrubber

syntheticrubber

syntheticrubber

naturalrubber

nitrilicrubber

rubbernaturalrubber

foamedpolyurethane

10 42 40 45 70 70 48 70 60 45 50

black red red red white gray/black light brown white white red yellow/gray

by gluing by gluingby

vulcanizationby

vulcanizationby

vulcanizationby

vulcanizationby

vulcanizationby

vulcanizationby

vulcanizationby gluing by spray

2 till 15 0,8 till 15 0,8 till 15 0,8 till 15 0,8 till 15 0,8 till 15 0,8 till 15 0,8 till 15 0,8 till 15 4,5 0,5 till 8

+/- 0,3 +/- 0,3 +/- 0,3 +/- 0,3 +/- 0,3 +/- 0,3 +/- 0,3 +/- 0,3 +/- 0,3 +/- 0,5 +/- 0,3

-10 / +60 -20 / +50 -20 / +60 -20 / +60 0 / +120 -10 / +100 -20 / +60 0 / +120 0 / +160 -20 / +60 -20 / +60

0,7 0,75 0,75 0,7 0,65 0,6 0,6 0,6 0,6 0,6 0,4

good very good very good very good good very good very good good good very good good

intermediate very good very good very good intermediate good very good intermediate intermediate very good very good

intermediate low low low good good low good good low very good

no no no no no no no no no no no

x 25 x 30 x 30 x 30 x 35 x 35 x 30 x 35 x 35 x 30 x 25

(1) Static Average values for steel guides(2) Suggested diameter is bigger value between this calculated value and minimum pulley diameter on belt data page

23

SPECIAL EXECUTIONS

On customer request and with a minimum quantity is possibile to produce Megapower with several colours.

Different colour doesn’t influence belt technical properties so mechanical features are same as standard grey/green belt.

COLOUR

Megadyne have been producing specialized belting for many years. Our in-house facilities enable us to produce belts

with special holes for vacuum applications, belts with special backings/grounds finishes for high tolerance applications.

We can remove individual teeth and perforate the timing belt as required.

MECHANICAL REWORK

A belt back can be ground to achieve a precise belt thickness as an adjunct to precision drives. When belt back grind-

ing to a tolerance is required, the total thickness, including the tooth, must be specified. A grinding tolerance of

+/- 0,2 mm is achievable with a level finish (i.e. thickness will not vary greatly around the belt).

BACK GRINDING

Longitudinal rework along the belt back is possibile on covered and uncovered belts. The profile can be machined precise-

ly for required function. The measurement is given as the depth on the belt back. Most widths and lengths are available.

LONGITUDINAL REWORK

The rework of the tooth profile can be very useful, i.e. improving the steering effect with guide rails. The rework dimen-

sion is given from the top of the tooth.

REWORK ON BELT TEETH

Holes in timing belts can be for vacuum or air film conveying or as clearance for assembly mechanisms. Stops and cams

can be attached through the holes. Customized tooling may be required depending on the layout and dimensions of holes

required.

HOLES IN TIMING BELTS

Single and multiple tooth removal is available to your requirement, for applications in handling and conveying

technology.

SINGLE TOOTH REMOVAL

24

SPECIAL EXECUTIONS PHOTOS

Belts and sleeves

Customer can choose the right Megapower depend-

ing on his business features:

belts are finished and ready to use, while

sleeves can be stored and cut at requested width by

end-users

Special profiles

Megapower belts can be manufactured on

customer request also with pitch

T2, RPP3, RPP8, STD3, MTD5

AT20 for high power

Megapower belts are available also in AT20 pitch,

with standard or special cords, to work in very

high power transmission applications

Directly moulded special cleats

Special cleats and flat profiles can be directly mould-

ed with the belt, being a part of it and

giving higher mechanical characteristics

Tracking belts for lifts

Custom design moulded belt, with high strength

capacity and helical special teeth,

high coefficient of friction and very low noise level,

used as tracking belts in lift applications

25

SPECIAL EXECUTIONS PHOTOS

Vacuum applications

Megapower belts for vacuum applications, coated

with Tenax or other coatings, with ground teeth, holes

and slots (perpendicular or sloping)

for vacuum transmission

Packing industry

Particular Megapower with directly moulded

carriers and pushers, engineered to meet very

special customer requests

Special carriers

Megapower customised belt with directly moulded

carriors, developed following customer design

Office automation

Megapower belt with special moulded cleats,

typically used used in office automation and

printing machines

Carding machines

Special moulded belt with cylindrical cleats,

used in textile industry

Textile industry

Special moulded belt used in textile industry,

manufactured in red or in blue polyurethane

26

PULLEYS AND TIMING BARS

27

PULLEYS AND TIMING BARS

Imperial

HTD

METRIC

RPP

MXL XL L H XH XXH HG

3M 5M 8M 14M

T2,5 T5 T10 T20 AT3 AT5 AT10

AT20 TG5 TG10 TG20 ATG10

RPP5 RPP8 RPP14

Pulleys can be provided both in standard design, according to ISO specifications, and engineered on customer requests.

Manufactured in aluminium, steel and cast iron, Megadyne pulleys are available with or without steel flanges and surface

treatment.

28

USEFUL FORMULAS AND CONVERSION TABLE

To convert from to multiply by

CV HP 0,9863201

CV kcal/h 63,24151

CV W 735,4988

CV kW 0,7354988

CV kgf m/s 75

CV lbf ft/s 542,476

HP CV 1,01387

HP kcal/h 641,1865

HP W 745,6999

HP kW 0,7456999

HP kgf m/s 76,04022

HP lbf ft/s 550

in m 0,0254

in cm 2,54

in mm 25,4

in ft 0,083

in2 m2 0,00064516

in2 cm2 6,4516

in2 mm2 645,16

in2 ft2 0,006944444

in3 m3 1,63871·10-5

in3 cm3 16,38706

in3 mm3 16387,06

in3 ft3 0,000578704

To convert from to multiply by

J CV h 3,77673·10-7

J HP h 3,72506·10-7

J kWh 2,77778·10-7

kg lb 2,204623

kgf N 9,80665

kgf lbf 2,204623

kgf m/s CV 0,01333333

kgf m/s W 9,80665

kgf m/s kW 0,00980665

kW CV 1,359622

kW kcal/h 859,8452

kW W 1000

kW kgf m/s 101,9716

kW lbf ft/s 737,5621

lb kg 0,4535924

lb kgf 0,4535924

lb N 4,448222

N kgf 0,1019716

N lbf 0,2248089

W CV 0,001359622

W HP 0,001341022

W kcal/h 0,8598452

W kW 0,001

W kgf m/s 0,1019716

W lbf ft/s 0,7375621

SPEED

V: peripheral speed [m/s]

n1: rotation speed [RPM]

d1: pulley diameter [mm]

POWER

P: power [kW]

Fu: peripheral force [N]

Mt: drive torque [Nm]



FORCES AND TORQUE

Fu: peripheral force [N]

Mt: drive torque [Nm]

P: power [kW]



V: peripheral speed [m/s]

V= d1·n119100

n1= V·19100

d1

Fu= 19,1·106·P

d1·n1

Mt= P·9550

n1

P= Fu·d1·n119,1·106

P= Mt·n19550

P= Fu·V

1000

Mt= Fu·d12000

Mt= P·d12·V

Fu= 2000·Mt

d1Fu=

P·103

d1

d1= V·19100

n1

29

NOTES

30

NOTES

31

NOTES

The data and information contained in the present catalogue are up-to-dated to the date

of the catalogue's printing. Megadyne Spa reserves the right to modify the specifications,

performances and other information relating to the belts described in the present catalo-

gue, at any time at its own discretion, without any prior notice. For updating refer to our

web site www.megadynegroup.com.

Technical specifications, performances and other information provided in the present cata-

logue are indicative and do not bound Megadyne unless such specifications, performan-

ces or other information are expressly agreed in the agreement with the customer.

We also recommend to read carefully the following documents in our web site

www.megadynegroup.com:

- Megadyne General Conditions of Sale (comprising the warranty )

- Theoretical Belt Life

- Drive Components: Storage, Installation, Maintenance and Troubleshooting Handbook

- Belts standard use condition and temperature.

Copyright Notice: Megadyne Spa copyright. All rights reserved. Megadyne is and shall

remain the owner of all rights on drawings, technical specifications and any other infor-

mation contained in the present catalogue or otherwise communicated by Megadyne Spa

to the customer. The customer shall not disclose such information to third parties or use

such information for purposes different from the definition of the order to Megadyne Spa,

unless upon prior written authorization of Megadyne.

MEGADYNE S.p.A.ITALY - MATHI

megapower - mark allen

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