Installation Precautions for High - Speed Precision Angular Contact Ball Bearings

High - speed precision angular contact ball bearings are mainly used in high - speed rotating occasions with light loads. They require high precision, high rotational speed, low temperature rise, low vibration, and a certain service life. They are often used as supporting components of high - speed electric spindles and installed in pairs. They are key supporting components of high - speed electric spindles for internal surface grinding machines.

The service life of high - speed precision angular contact ball bearings is closely related to installation. The following precautions should be noted:

1. The installation of angular contact ball bearings should be carried out in a dust - free and clean room. The bearings should be carefully selected, and the bearing spacers should be ground. On the premise of keeping the inner and outer ring spacers at the same height, the parallelism of the spacers should be controlled within 1 μm.

2. Before installation, the angular contact ball bearings should be cleaned thoroughly. During cleaning, the inner ring slope should face upward, and the hand feel should be flexible without stagnation. After air - drying, put in the specified amount of grease. If it is oil mist lubrication, put in a small amount of oil mist oil.

3. Special tools should be used for the installation of angular contact ball bearings to ensure uniform force application. Knocking is strictly prohibited.

4.Angular contact ball bearings should be stored in a clean and ventilated place without corrosive gases, and the relative humidity should not exceed 65%. For long - term storage, anti - rust treatment should be carried out regularly.