What are the causes of bearing cage damage?

The reasons for the damage of the bearing cage are as follows:

1. The bearing is not lubricated enough, the lubricating oil or grease is dried out, the maintenance is not added in time, and the label used for the lubricating oil or grease is wrong.

2. The impact load of the bearing The violent vibration in the impact load produces the impact of the rolling element on the cage.

3. The cleanliness of the bearing The bearing is not well sealed in the bearing box, and dust enters, which increases the friction between the rolling element and the cage, thereby causing damage to the cage.

4. Installation problems The bearing is not installed correctly, and the cage is damaged during installation.

5. Bearing creep phenomenon The creep phenomenon of multi-fingered ferrules, when the interference of the mating surface is insufficient, the load point moves to the surrounding direction due to sliding, resulting in the deviation of the ferrule relative to the shaft or the casing in the circumferential direction The phenomenon.

6. The abnormal load of the bearing cage is not in place, inclined, and the interference is too large, which can easily lead to the reduction of clearance, aggravate friction and heat generation, soften the surface, and prematurely abnormal peeling. In the pocket, the operation of the cage is blocked and an additional load is generated, which aggravates the wear of the cage. Such a deteriorated circulation effect may cause the cage to break.

7. Bearing cage material defects, cracks, large foreign metal inclusions, shrinkage holes, air bubbles and riveting defects, missing nails, pad nails or gaps in the joint surface of the two half cages, and serious rivet injuries may cause the cage to break.

8. The intrusion of hard foreign objects in the bearing The intrusion of foreign hard foreign objects or other impurities aggravates the wear of the cage. If the above reasons are solved, the life of the bearing will be very long. The reason for many bearing damage is not that the life of the bearing itself has expired. , but caused by many external environments, such as insufficient lubrication, dust entry, installation errors, excessive load, high temperature, and improper coupling.