| Condition | Cause | Solution |
|---|---|---|
| Rolling element contact path on raceway surface strays or skews. | Deformation or tilt of bearing ring due to poor accuracy of shaft or housing Poor rigidity of shaft or housing Deflection of shaft due to excessive clearance |
|
- Spherical roller bearing
- Contacts on inner ring, outer ring, and rollers are not even.
- The cause is poor mounting.
Photo 7
- Outer ring of tapered roller bearings
- Contact path on raceway surface strays.
- The cause is poor mounting.
- Rollers of tapered roller bearing of which outer ring is shown in Photo 7
- Contact marks on rolling contact surfaces are not even.









