The service life of high-speed precision bearings is closely related to their installation, and the following precautions should be taken:

1. The installation of bearings should be carried out in a dust-free and clean room. The bearings should be carefully selected and matched, and the spacer rings for bearings should be ground. The parallelism of the spacer rings should be controlled below 1um while maintaining the same height as the inner and outer rings;

2. Before installing the bearing, it should be cleaned thoroughly. When cleaning, the inner ring slope should be facing upwards, with flexible hand sensing and no sense of stagnation. After drying, a designated amount of grease should be added. If it is oil mist lubrication, a small amount of oil mist oil should be added;

3. Special tools should be used for bearing installation, with even force distribution, and knocking is strictly prohibited;

4. Bearings should be stored clean and ventilated, without corrosive gases, with a relative humidity of no more than 65%. Long term storage should prevent rust on schedule.

In order to improve the actual fitting accuracy during the installation of precision bearings, it is necessary to use measurement methods and tools that do not deform the precision bearings to conduct actual precision measurements of the fitting surface dimensions of the inner hole and outer circle of the precision bearings. All measurement items related to the inner and outer diameters can be measured, and the measured data can be comprehensively analyzed. Based on this, the dimensions of the installation parts of the precision bearings for the precision matching shaft and seat hole can be determined. When measuring the corresponding dimensions and geometric shapes of the shaft and seat hole in actual measurement, it should be carried out under the same temperature conditions as when measuring precision bearings.

To ensure a high actual fit effect, the surface roughness of the shaft and seat hole that matches the precision bearing should be as small as possible.