Wear is surface deterioration with loss of material, due to sliding friction at contact points. Wear modes include:
Abrasive
Adhesive
Entry of debris
Poor lubrication
Sliding due to irregular motion of rolling elements
Improve the sealing mechanism
Clean the housing
Filter the lubrication oil thoroughly
Check the lubricant and lubrication method
Prevent misalignment
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Wear 1
Part: Outer ring of a cylindrical roller bearing Symptom: Smearing, a form of adhesive wear, occurs circumferentially on raceway surface. Cause: Roller sliding due to excessive grease fill
Wear 2
Part: Outer ring of a spherical roller bearing Symptom: Wear with a wavy or concave-convex texture on loaded side of raceway surface Cause: Entry of debris under repeated vibration while stationary
Wear 3
Part: Inner ring of a double-row tapered roller bearing Symptom: Fretting Wear of raceway and stepped Wear on the rib face Cause: Fretting progression due to excessive load while stationary
Wear 4
Part: Tapered rollers of damage “Wear 3” Symptom: Stepped Wear on the roller head end faces Cause: Fretting progression due to excessive load while stationary
Downloads
Bearing Doctor
Guide to prevention and countermeasures for bearing failures