Points to pay attention to when installing high speed spherical roller bearings

release time：2022/4/14 14:24:09

In the installation of high-speed self-aligning roller bearings to take into account 2 points: hardness changes caused by temperature rise; Force system changes and shape changes caused by high-speed rotating centrifugal force. In order to ensure that the raceway deformation after bearing installation is small, the interference amount of interference fit can not be too large, and the centrifugal force at high speed and thermal expansion at high temperature, or offset the normal pressure of the surface of the fit. Therefore, the interference amount must be carefully calculated under the premise of considering the above two factors. The effective interference amount at room temperature and normal speed may be invalid for high-speed self-aligning roller bearings.

Installation requirements:

1. The assembly site should be kept clean and free from dust as far as possible.

2. To avoid bearing contaminated with dust, pollutants and moisture - pollutants have a negative impact on the operation and service life of bearings.

3. Check the bearing seat hole and the mating surface on the shaft: geometric and dimensional accuracy and cleanliness.

4. Apply a little oil or grease to the mating surface of the bearing ring.

5. Make sure the shaft and housing holes have a 10-15 degree guide chamfer.

6. Do not cool the bearing too much: the moisture produced by condensation can lead to corrosion of the bearing and the mating surface of the bearing.

7. After installation: fill the self-aligning roller bearing with lubricant and check whether the bearing configuration works normally