Chain Retirement Judgment

Chain Retirement Judgment

Date:Jul 20, 2019

1. The allowable wear value of the chain shall not exceed 10% of the diameter of the ring chain or the thickness of the accessory;

2. From the plane where the main ring is not bent, the main ring is distorted by more than 10 degrees and should be scrapped;

3. Cracks appearing in any part of the chain, bending or twisting phenomenon and stuck or deadlock between the ring hinges are prohibited and cannot be excluded;

4. The permanent elongation of the chain and single ring shall not exceed 5% of the original length.


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