The clutch release bearing is installed between the clutch and the transmission, and the movement should be flexible without sharp noise or jamming. Its axial clearance should not exceed 0.60mm, and the wear of the inner race should not exceed 0.30mm. If the clutch release bearing fails to meet the above requirements, it is a failure.

Damage reason:
1. The working temperature is too high to cause overheating.
2. Lack of lubricating oil and wear.
3. The free stroke is too small or the load times are too many.
4. The separation lever is not flat.
5. There is a problem with the return spring of the separation bearing.