Bearing Failures
Causes and failure in rolling bearing (Source: antriebstechnik 18 (1979) No.3, 71-74). Only 0.35% of rolling bearings do not reach expected life.
No component containing moving parts lasts for ever. Rolling bearings are precision and reliable machine elements. The vast majority give satisfactory service but some do fail before expected life. The service life of abearing is measured by the number of revolutions (or operating time at some given speed) during which the bearing will perform satisfactorily.
Experience show that failures are rare due to faults in the bearings but more due to external causes such as errors in mounting, operation etc.
| . Contamination |
. False Brinelling | . Over heating | . Outer Ring Fracture |
| . Misalignment | . Slippage Tracks | . Tight Fits | . Axial Cracks |
| . Normal Fatigue | . True Brinelling | . Lubricant Failure | . Corrosion |
| . Fluting | . Excessive Loads | . Fretting | . Seizure |