SEARCH
CONTACT US
Damage Condition Possible Causes Countermeasures
Straight line scratches on surface of raceways or rolling elements caused during mounting or dismounting of bearing.
  • Inclination of inner and outer rings during mounting or dismounting
  • Shock load during mounting or dismounting
  • Use appropriate jig and tools
  • Avoid shock loads by using a press machine
  • Center the relative mating parts during mounting

 

Click a photo to enlarge it

Mounting Flaws 1

Part: Inner ring of a cylindrical roller bearing
Symptom: Axial scratches on raceway surface
Cause: Inclination of inner and outer rings during mounting

Mounting Flaws 2

Part: Outer ring of a double-row cylindrical roller bearing
Symptom: Axial scratches at roller pitch intervals on raceway surface
Cause: Inclination of inner and outer rings during mounting

Mounting Flaws 3

Part: Rollers of a cylindrical roller bearing
Symptom: Axial scratches on rolling surface
Cause: Inclination of inner and outer rings during mounting

Downloads

New Bearing Doctor - Maintenance of Bearings

Handling & Maintenance, Performance, Inspection, Running Traces & Applied Loads, Bearing Damage & Countermeasures

Contact Search

Please select your options to view your contact.

Your result