The important factors to the FAG plastic bearing cage

FAG bearing cage fracture belongs to incidental abnormal failure mode, we come from the following five aspects: analysis of plastic failure of bearing cage. 1, FAG bearing lubrication bad problem: plastic bearing is in inferior position, operation is easy to form the adhesive wear and worsen working surface, adhesive wear of the tear easily into the cage, the cage cause abnormal load, a bracket will be likely to cause fracture. 2, FAG bearing creep phenomenon: creep refers to the ring sliding phenomenon, more in the mating surface interference under the condition of insufficient, because the sliding and make the load point to move around, produce relative axial ring or shell to circumferential direction location deviation phenomenon. 3, FAG bearing retainer materials defects: crack, large pieces of different metal inclusion, shrinkage cavity, bubbles and riveting defects of nails, nail mat or half cage joint gap, riveting injury etc are likely to cause serious maintains a fracture. 4, FAG bearing cage abnormal load: installation does not reach the designated position, slope, etc of the large amount of interference of the clearance is reduced, increasing friction heat production, the surface of the softening, abnormal early spalling, along with the expansion of peeling, flaking, foreign body into the cage pocket hole lead to keep running block and generate additional load, aggravated the wear and tear in the cage, the cycle of such deterioration, it may cause maintains a fracture. 5, FAG bearing hard foreign invading foreign hard the invasion of the foreign body, exacerbating the cage wear and produce abnormal additional load, are also likely to lead to keep frame fracture.