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Peeling

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

Photo: Rollers of spherical roller bearing

  • Rollers of spherical roller bearing
  • Peeling on rolling contact surfaces
  • The cause is poor lubrication.

Photo: Tapered roller bearing

  • Tapered roller bearing
  • Development of peeling to flaking on inner ring and rollers
  • The cause is poor lubrication.