Several common causes of oil leakage after the reducer oil seal

1. Reasons for assembly

Due to the press-fitting tool, the oil seal is deformed after press-fitting; ②During the assembly process, the oil seal passes through threads or splines, causing scratches on the lip; ③Due to the low roughness of the oil seal position and excessive press-fitting force, the spring fails or lip flip.

Second, the skeleton reason

Due to material and manufacturing problems of the oil seal spring, its performance failed.The failure mode of the spring is: the spring is too tight or too loose. When the spring is too loose, the spring compression force is small and the sealing effect cannot be achieved. There is an oil spill.

3. Reasons for working medium

The working medium is oil.The choice of oil seal material should consider its compatibility with oil. If the compatibility between the two is poor, lip swelling, hardening, softening, cracking, etc. will occur, and oil leakage will eventually occur.

4. Causes of lip wear

Cleanliness problems: casting sand, machined iron filings, oil impurities, etc., a large amount of oil seal lip parts are accumulated, and abnormal wear occurs during operation; Abnormal wear; ③ The lip of the oil seal is poorly lubricated with lithium-based grease, and dry friction will occur, resulting in abnormal wear.

Five, the reason for the axis