Rubber timing belts

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Suitable for numerous specifications that can be widely used in synchronous driven area.

Timing belt drive consists of an endless belt whose inner surface has equally spaced teeth and of wheels that have the corresponding teeth and is a kind of new type belt drive which has synthesized all the good points of belt drive, chain drive, and gear drive while working, the teeth of the belt and the gullets of the gear joggle each other to transmit the motion and the drnamic force.

Timing belt drive has such features as exact transmission ratio, non-sliding, constant velocity ratio, even motion, absorption of vibration, little noise, the big range of transmission ratio which can normally reach 1:10, and the linear velocity can reach 40m/s. The high transmission efficiency normally reaches 0.98, compacting structure, the suitability to multi-axis trans­mission, no need of lubrication, no pollution and so on. Therefore, the product can normally work well in the places where no pollution is allowed and where the working condition is worse and can be widely used in machinery drives, such industry as automobiles, machine tools, textile, chemical engineering, light industry, mining, instruments, oil industry and so on as well as all kinds of other machinery Drive.

Timing belt we produced have a lot of advantages: anti-wearing out, low elongation rate and high strength, resistant to temperature range, nonaning, ozone resistant, etc All these can meet customers request perfectly, the property of our belts have reached or surpassed the international standard.



Product Description:

1, Economic and free-maintenance to replace traditional driven model will be an idel chofce.

2, Precisely moulded teeth profiles, nylon fabric cover protects the tooth surfaces.

3, Wide range of load capacities and speed ratios. Constant angular velocity.

Efficiencies up to 99%. Maintenance-free continuity of operation.

In terms of tooth profile, timing belt can be divided into tapezoidal profile and arctooth profile.in terms of tooth arrangements, timing belt can be divided into single-sided belt and double side belt. In terms of tooth pitch, timing belt can be divided into different sizes.



Figured Physicomechanical Property of Synchronous Belt.

Item Trapezoid Tooth Arc Tooth
XL L H XH XXH 3M 5M 8M 14M 20M
Tensile strength
(N/mm) ≥
80 120 270 380 450 90 160 300 400 520
Elongation /mm 60 90 220 300 360 70 130 240 320 410
At Elongation 4
Hardness(Shore A) 75±5
Adhesion strength of 5 6.5 8 10 12 - 6 10 12 15
Adhesion strength of 200 300 600 800 1500 - 400 700 1200 3600
Gear shearing 50 60 70 75 90 - 50 60 80 100


Figure2:Belt tooth size.


Trapezoidal Toothed Synchronous Belt


Type Picth Tooth Angle Bottom Tooth Tooth Height Fillet Tip Belt Thickness Teeth Number Range Picth Length
pb 2y° s hg rr ra h
MXL 2.032 40 1.14 0.51 0.13 0.13 1.14 43 - 2044 87.38 - 4153.41
XXL 3.175 50 1.73 0.76 0.20 0.20 1.52 46 - 124 146.05 - 393.70
XL 5.080 50 2.57 1.27 0.38 0.38 2.3 22 - 510 111.76 - 2590.80
L 9.525 40 4.65 1.91 0.51 0.51 3.6 23 - 530 219.08 - 5048.25
H 12.700 40 6.12 2.29 1.02 1.02 4.3 29 - 440 368.30 - 5588.00
XH 22.225 40 12.57 6.35 1.57 1.19 11.2 53 - 220 1177.93 - 4889.50
XXH 31.750 40 19.05 9.53 2.29 1.52 15.7 56 - 144 1778.00 - 4572.00

T-toothed Synchronous Belt


Type Picth Tooth Angle Bottom Tooth Tooth Height Fillet Tip Belt Thickness Teeth Number Range Picth Length
pb 2y° s hg rr ra h
T2.5 2.5 40 1.50 0.70 0.2 0.2 1.3 42-312 105.00-780.00
T5 5.0 40 2.65 1.20 0.4 0.4 2.2 30-400 150.00-2000.00
T10 10.0 40 5.30 2.50 0.6 0.6 4.5 34-536 340.00-5360.00
T20 20.0 40 10.15 5.00 0.8 0.8 8.0 61-181 1220.00-3620.00
AT5 5 50 1.20 2.70
AT10 10 50 0.50 5.00
AT20 20 50 5.00 8.00


Arc Synchronous Belt


Type Picth Tooth Angle Bottom Tooth Tooth Height Fillet Tip Belt Thickness Teeth Number Range Picth Length
pb 2y° s hg rr ra h
3M 3.0 14 1.78 1.17 0.24-0.3 0.87 2.40 35- 1000 105.00 - 3000.00
5M 5.0 14 3.05 2.06 0.40-0.44 1.49 3.80 35- 852 175.00 - 4260.00
8M 8.0 14 5.15 3.36 0.64-0.76 2.46 6.00 36- 565 288.00 - 4520.00
14M 14.0 14 9.40 6.02 1.2-1.35 4.50 10.00 56- 340 784.00 - 4760.00
20M 20.0 14 14.00 8.4 1.77-2.01 6.50 13.20 100- 260 2000.00 - 5200.00


S-toothed Synchronous Belt


Type Picth Bottom Tooth Tooth Height Fillet Tip Belt Thickness Teeth Number Range Picth Length
pb s hg rr ra h
S2M 2.0 1.30 0.76 1.30 0.20 1.36 44-1914 88.00 -3828.00
S3M 3.0 1.95 1.14 1.95 0.30 1.94 41-500 123.00-1500.00
S4.5M 4.5 2.93 1.71 2.93 0.45 2.81 40-201 180.00 -904.50
S5M 5.0 3.25 1.91 3.25 0.50 3.41 30-560 150.00 -2800.00
S8M 8 5.20 3.05 5.20 0.80 5.30 53-500 424.00 -4000.00
S14M 14 9.10 5.30 9.10 1.40 10.20 69-322 966.00 -4508.00


Parabolic Synchronous Belt


Type Picth Bottom Tooth Tooth Height Belt Thickness Teeth Number Range Picth Length
pb s hg h
R2M 2 1.30 0.73 1.3 56-612 88.00 -3828.00
R3M 3 1.95 1.09 1.9 30-621 123.00- 1500.00
RSM 5 3.25 1 .81 3.6 36-400 180.00- 904.50
R8M 8 5.20 2.90 5.5 40-550 150.00- 2800.00
R14M 14 9.50 6.00 10.0 69-327 424.00 -4000.00



G, Y-toothed Synchronous Belt


Type Picth Tooth Height Fillet Fillet Radius Top Arc b Belt Thickness Teeth Number Range Picth Length
pb hg rr r2 r3 h
3MR 3.0 1.14 0.25 1.52 0.85 0.61 2.40 30-621 90.00- 1863.00
5MR 5.0 1.93 0.51 2.54 1.37 1.03 3.80 36-400 180.00 - 2000.00