Rolling bearing abrasion failure and fatigue failure

Rolling bearing wear failure and fatigue failure - 2020 03 - 04 of rolling bearing wear failure: wear is the most common type of rolling bearing failure mode, bearing raceway and rolling body, keep frame, seat holes or install the bearing diameter of axle, due to mechanical causes the surface of the wear and tear. The existence of abrasive, is the basic cause of bearing wear. Common have the roller bearing inner race due to poor lubrication of the serious abrasive wear, surface with a small amount of corrosion. When abrasive coarser, bearing wear and tear on the band color dark; Abrasive is fine, the formation of the wear with light. Since a dead ball bearing, due to vibration and abrasive when still work together, to form in the ring and pitch ball the same pits, friction corrosion phenomena. A thrust ball bearing, for the same reasons appear friction corrosion phenomenon, is due to the bearing with a hole or trunnion cooperate is too loose, to cause the relative sliding in sports, or trunnion bearing hole caused by wear and tear. Rolling bearing fatigue failure: fatigue is another common failure forms of rolling bearing, often characterized by rolling or raceway surface flaking or peeling. Initial stage is formed on the surface of irregular pits, gradually extended. Causing spalling is the main reason of the fatigue stress, sometimes it is due to bad lubrication or forced to install. Due to the large axial load, for example, the ball bearing inner raceway surface early fatigue spalling of rolling road, only a little of local irregular pits. Pits of late fatigue spalling, this is local to the result of the whole roll road extension. （ Source: the eagle eye research)