Phenomenon 1: Bearing seat cracks
Cause:
1. The bearing fit is too tight
2. The inner or outer ring of the bearing is loose.
3. Deformation of the bearing housing
4. Poor surface processing of the bearing installation, etc.

Solution: Replace the bearings

Phenomenon 2: The cage is broken
Cause:
1. Insufficient lubrication
2. Broken rolling elements
3. The seat ring is skewed, etc.

Solution: Replace the bearings

Phenomenon 3: The cage metal adheres to the rolling elements
Cause: The rolling elements are stuck in the cage or insufficient lubrication

Solution: Replace the bearings, replace clean grease, and keep the oil line smooth

Phenomenon 4: The raceway of the seat ring is severely worn
Cause:
1. Foreign objects fell into the seat ring
2. Insufficient lubricating oil
3. The lubricating oil brand does not match
Solution:
1. Replace new bearings, replace clean lubricating oil, and keep the oil circuit smooth.
2. Consider the operating conditions and replace the lubricant grade that meets the operating conditions.