The timing belt uses steel wire rope or glass fiber as a strong layer and is covered with an endless belt made of polyurethane or neoprene. The inner periphery of the auto timing belt is toothed to make it mesh with the toothed belt wheel. When the rubber belt is driven, the transmission ratio is accurate, the force on the shaft is small, the structure is compact, oil resistance, good abrasion resistance, and good aging resistance. The general use temperature is -20 ℃ ~ 80 ℃, v <50m / s, P <300kw, i <10, can also be used for low-speed transmission for transmissions requiring synchronization.
Construction of Auto Timing Belt

No. | Item | Function | Material |
1 | Top rubber | Protect the lining tensile member | CR |
2 | Tensile member | Protect the tensile member and maintain the shape of the rubber, prevent the rubber from stretching. | Glass fiber |
3 | Teeth rubber | Protect the tensile member and maintain the shape of the rubber. | CR |
4 | Teeth fabric | Excellent frictional resistance prolongs the service life of the product. | Nylon fabric |
The Section Size of Automotive Timing Belt
Section of size | Dimension | Profile of Tooth |
P(mm) | Hs(mm) | T(mm) | Ht(mm) |
MR | 9.525 | 5.7 | 2.20±0.25 | 3.4 | Round Tooth |
RU | 9.525 | 5.41 | 2.00±0.25 | 3.41 | Trap ezoidal tooth |
YU | 8 | 5.3 | 2.25±0.25 | 3.05 | Trap ezoidal tooth |
ZA | 9.525 | 4.21 | 2.30±0.25 | 1.91 | Trap ezoidal tooth |
ZBS | 9.525 | 5.06 | 2.30±0.25 | 2.6 | Trap ezoidal tooth |
S8M | 8 | 5.3 | 2.25±0.25 | 2.9 | Trap ezoidal tooth |
MY | 8 | 5.21 | 2.15±0.25 | 3.06 | Round Tooth |
ZB | 9.525 | 4.5 | 2.21±0.25 | 2.29 | Trap ezoidal tooth |
We can offer car timing belt for American cars, German cars, Japanese cars, Korean cars, French cars, it's easy to search the belt which you need by simple two ways: searching by OEM No. of Car V belt or searching by a brand of CAR from the searching box in the first page.