The higher the bearing speed, the impact on the bearing is mainly reflected in the following aspects:

1. Friction and heat: As the rotational speed increases, the rolling friction and sliding friction inside the bearing will intensify, causing the friction speed to increase, thereby generating more heat. This increase in heat may not only increase the bearing temperature and affect the lubrication effect, but may also accelerate the wear and fatigue of the bearing material.

2. Lubrication problem: High rotation speed may cause the base oil of the grease to evaporate and dry out, and the oil film becomes smaller, which in turn affects the lubrication effect of the bearing. Poor lubrication will increase bearing wear and vibration, and may even cause bearing failure. In addition, high rotational speeds may cause grease to be ejected from the bearings, further deteriorating lubrication conditions.

3. Influence of centrifugal force: At high speeds, the centrifugal force of the bearing rolling elements increases, which may cause changes in the relative positions of the components inside the bearing, affecting the normal operation of the bearing. At the same time, centrifugal force may also cause deformation of the bearing, reducing its stiffness and load-bearing capacity.

4. Noise and vibration: High-speed bearings are prone to produce greater noise and vibration, which will not only affect the overall performance of the equipment, but may also have an impact on the working environment and the health of users.

Therefore, when selecting and using bearings, it is necessary to fully consider the impact of rotational speed on the bearings to ensure that the bearings can operate normally within a suitable rotational speed range. At the same time, for high-speed bearings, more stringent lubrication, cooling and maintenance measures need to be taken to extend their service life and ensure stable operation of the equipment.