Cracking
Cracking
Condition
|
Cause
|
Solution
|
- Inner ring of spherical roller bearing
- Split of raceway surface in the axial direction
- The cause is excessive interference fit.
- Fracture of inner ring shown in Photo 3
- Originating point is observed at the middle of the left raceway surface.
- Outer ring of four-row cylindrical roller bearing
- Split of raceway surface in the circumferential direction, originated from large flaking.
- The cause is large flaking.
- Outer ring of angular contact ball bearing
- Split of raceway surface in the circumferential direction
- The cause is slipping of balls due to poor lubrication.