What Causes Frequent Belt Breakage?

1 Answers
DeJourney
07/30/25 6:12am
The reason for frequent belt breakage is excessive local stretching of the belt, leading to misalignment and subsequent breakage. Below are additional details: 1. Check the belt locally: If the belt breaks shortly after use, confirm whether it has been excessively stretched locally, forcibly installed, or damaged by contact with the edges of the mechanical frame, causing abrasion or breakage. 2. Check the pulley shape: If the belt breaks after misalignment, verify whether the pulley shape is appropriate. Remove any shoulder on the pulley. Adjust the parallelism of the pulley. 3. Verify compliance with specifications: Confirm whether the pulley is twisted, worn, or deformed. Check whether the installed belt meets the specified stretch rate. Exceeding the specified stretch rate or installing the belt too tightly can cause excessive load and lead to belt breakage.
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