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For bearing cages, fracture is the most troublesome problem. Therefore, we would like to share with you some common factors that cause the bearing cage to break, so that you can achieve better maintenance of the cage during the use of the bearing to extend the life of the bearing.
1.Poor bearing lubrication
Bearing operation is in a lean state, which is easy to form adhesive wear, which deteriorates the working surface state.
The tears caused by adhesive wear easily enter the cage, causing abnormal load on the cage and may cause the cage to break.
2.Bearing creep phenomenon
When the interference of the mating surface is insufficient,the load point moves to the surrounding direction due to sliding, resulting in the phenomenon that the ferrule is circumferentially deviated from the shaft or the housing in the circumferential direction.
3. Abnormal load of bearing cage
Inadequate installation, inclination, excessive interference, etc. can easily reduce the clearance, increase frictional heat generation, surface softening, and abnormal peeling prematurely. As the peeling expands, the peeled foreign objects enter the cage pocket, resulting in the cage Blockage of operation and additional load increase the wear and tear of the cage, so that the deterioration of the cycle may cause the cage to break.
4. Material defect of bearing cage
Cracks, large foreign metal inclusions, shrinkage holes, air bubbles and riveting defects, lack of nails, cushion nails or gaps between the two halves of the cage joint surface, severe riveting injuries, etc. may cause the cage to break.
5. Intrusion of hard foreign bodies in bearings
The intrusion of foreign hard foreign objects or other impurities exacerbates the wear of the cage.
6. Blockage of foreign bodies in raceway
Pieces of sheet material or other hard particles may enter between the cage and the rolling element, preventing the latter from rotating around its own axis.