“Bearings life” refers to the duration for which a bearing can operate efficiently without experiencing excessive wear, damage, or failure due to the operating conditions and maintenance routines.
The early failure forms of rolling bearing mainly include fracture, plastic deformation, wear, corrosion and fatigue. Under normal conditions, it is mainly contact fatigue. In addition to the service conditions, the failure of bearing parts is mainly restricted by the hardness, strength, toughness, wear resistance, corrosion resistance and internal stress state of steel. The main internal factors affecting these performances and states are as follows.Factors affecting bearing life and its control