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The Cause of the Failure of the Rubber Timing Belt


There are many reasons for the failure mode of the Rubb […]

There are many reasons for the failure mode of the Rubber Timing Belt, and sometimes the failure mode of the belt is difficult to determine. The purpose of this article is to define, exemplify and judge the usual failure mode of the timing belt so that we can take appropriate defensive measures and corrective action.

After the vehicle travels 100,000 kilometers, the buckle performance of the core of the belt is reduced, and the belt is small, which is an ideal belt failure mode. The timing of the belt is also ineffective, but this is not an ideal belt failure mode. So it is recommended to replace 80,000 kilograms of new belt and tension wheel.

This failure mode occurs when the belt core is bent to a very small diameter. A sharp bend causes the belt core fibers to bend and damage under enormous pressure, resulting in a decrease in the tensile strength of the belt. The most common failure mode of belt bending failure is usually the operation of the belt with the storage, packaging, installation and installation, as well as the belt installation tension is too low, the diameter of the pulley is too small and the wheel has a foreign body and so on.

Shock load will exacerbate timing belt failure. Ordinary V-belts can be used to instantly slip to reduce the impact load, but the belt must transmit all the load. If the impact load occurs only once, or in the belt fixed position to repeat the cycle, the remaining teeth of the belt may still look normal. But in fact it has begun to crack from the roots. If the impact load can not be avoided, only the core can be strengthened.

So when the timing belt fails, in order not to affect the normal driving of the car, we need to pay attention to the use of the belt, maintenance and replacement. Once the above situation, at any time with the belt to check to see if it is normal.