A Brief Talk on the Causes of the Tooth Fracture of the Synchronous Belt


The failure of synchronous belt pulley is mainly caused by the failure of gear teeth. The failure forms of gear teeth are various, and one of the common surface forms is gear tooth fracture. For this phenomenon, the manufacturer needs to take measures to improve the pulley. This article will introduce the causes of the synchronous belt gear tooth fracture:

Causes of the Tooth Fracture of the Synchronous Belt

1. Gear tooth overload

When the gear of the synchronous belt pulley is suddenly overloaded, it is also easy to cut or break the gear. Therefore, overload should be strictly prohibited during application.

2. Stress concentration

The fracture of synchronous belt gear teeth also includes the sudden change of the cross section of the transition part of the tooth root and the stress concentration caused by the tool marks produced in the machining process. Once the gear teeth are loaded for a long time, the tooth root will crack due to fatigue. With the continuous expansion of cracks, the gear teeth will break.

3. Tooth root bent and broken

When driving with synchronous pulley, people should maintain more to avoid fracture failure, otherwise the transmission effect will be directly affected. Once such failure occurs, it is necessary to find out the cause of such failure in time. When the tooth root is bent, fatigued or broken, it is one of the causes, because the complete stress generated by the tooth root is very large.

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