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Peeling

Condition Cause Solution
Peeling is a cluster of very small spalls (size about 10µm). Peeling can also include very small cracks which develop into spalls. Likely to occur in roller bearings. Tends to occur if surface of opposite part is rough or lubrication characteristics are poor. Peeling may develop into flaking.
  1. Control of surface roughness and dust
  2. Selection of appropriate lubricant
  3. Proper break-in
  • Rollers of spherical roller bearing
  • Peeling on rolling contact surfaces
  • The cause is poor lubrication.
  • Tapered roller bearing
  • Development of peeling to flaking on inner ring and rollers
  • The cause is poor lubrication.


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