| Damage Condition | Possible Causes | Countermeasures |
|---|---|---|
|
The pitted surface has a dull luster which appears on the rolling element surface or raceway surface. |
Debris becomes caught in the lubricant |
|
Click a photo to enlarge it
Pitting 1
Part : Outer ring of a slewing bearing
Symptom : Pitting on the raceway surface
Cause : Rust
Pitting 2
Part : Ball of damage “PITTING 1”
Symptom : Pitting on the rolling element surface