Damage Condition Possible Causes Countermeasures

Wear occurs due to repeated sliding between the two surfaces.
Fretting occurs at fitting surface and also at contact area between raceway ring and rolling elements.
Fretting corrosion is another term used to describe the reddish brown or black worn particles.

Poor lubrication
Vibration with a small amplitude
Insufficient interference

  • Use a proper lubricant
  • Apply a preload
  • Check the interference fit
  • Apply a film of lubricant to the fitting surface