Speckles and Discoloration
Speckles and Discoloration
Condition
Speckles
Discoloration
|
Cause
|
Solution
Speckles
Discoloration
|
- Inner ring of double row tapered roller bearing (RCT bearing)
- Raceway surface is speckled
- The cause is electric pitting.
- Ball of deep groove ball bearing
- Speckled all over
- The cause is foreign objects and poor lubrication
- Outer ring of spherical roller bearing
- Partial oil deposition on raceway surface
- Spherical roller bearing
- Discoloration of inner and outer ring raceway surfaces
- The cause is deterioration of lubricant.