1. Too tight fit: Too tight fit between the inner ring of the bearing and the shaft, and between the outer ring and the seat hole will cause the bearing to run inflexibly, increase friction, and generate a large amount of heat, which will increase the bearing temperature and lead to premature aging of the bearing. .

2. Misalignment of installation: If the bearing is installed incorrectly or misaligned, the load on the bearing will be uneven, the bearing will bear excessive load locally, friction will increase, and the bearing will easily age prematurely.

3. Strong vibration: When mechanical equipment is subjected to strong vibration, the rolling elements and rings in the rolling bearing will move relative to each other and collide with each other, causing increased wear and fatigue, prone to fatigue peeling and gluing, leading to premature aging of the bearing.

4. Poor lubrication: The lubricant in the rolling bearing is insufficient or inappropriate and cannot form an effective lubricating film, resulting in increased bearing friction, increased wear, and increased temperature, thereby accelerating the aging of the bearing.

5. Material fatigue: During the long-term operation of rolling bearings, the rolling elements and rings will be subjected to repeated stress, causing fatigue spalling and micro-crack expansion, eventually leading to premature aging of the bearing.

6. Pollution corrosion: Rolling bearings are invaded by pollutants and corrosives, causing chemical and electrochemical corrosion of bearing materials, reducing the strength and durability of the bearing, thereby accelerating the aging of the bearing.

     In order to extend the service life of rolling bearings, it is necessary to reasonably select the fit, install it correctly, and ensure the stability and good lubrication of the mechanical equipment. At the same time, strengthen the maintenance of the bearings, check and replace the lubricant regularly, and avoid premature aging of the rolling bearings.