Angular Contact Ball Bearing Installation Form

The quick and easy automatic selection of angular contact ball bearings can be provided. The installation forms of angular contact ball bearings include back-to-back, face-to-face and series arrangement. When installing back-to-back (the wide end faces of the two bearings are opposite), the contact angle line of the bearing spreads along the direction of the rotation axis, which can increase the radial and axial support angle rigidity and maximize the deformation resistance; When installed face-to-face (the narrow end faces of the two bearings are opposite), the contact angle line of the bearing converges towards the direction of the rotation axis, and its bearing angle rigidity is small. As the inner ring of the bearing extends out of the outer ring, when the outer rings of the two bearings are pressed together, the original clearance of the outer ring is eliminated, which can increase the preload of the bearing; When installing in series arrangement (the wide end faces of the two bearings are in one direction), the contact angle lines of the bearings are in the same direction and parallel, so that the two bearings can share the working load in the same direction. However, when using this installation form, in order to ensure the axial stability of the installation, two pairs of bearings arranged in series must be installed opposite at both ends of the shaft.

Main Specifications:

1. Bearing accuracy index: Exceed GB/307.1-94 P4 level accuracy

2. High-speed performance index: dmN value 1.3~1.8x 106 /min

3. Service life (average): >1500 h

The service life of high-speed precision angular contact ball bearings has a lot to do with the installation. The following matters should be paid attention to:

1. The bearing installation should be carried out in a dust-free and clean room. The bearing should be carefully selected and the spacer used for the bearing should be ground. On the premise of maintaining the same height of the inner and outer rings, the parallelism of the spacer should be controlled at 1um. the following;

2. The bearing should be cleaned before installation. When cleaning, the slope of the inner ring should be upward, and the hand feel is flexible and there is no stagnation. After drying, put in the specified amount of grease. If it is oil mist lubrication, put a small amount of oil mist oil;

3. Special tools should be used for bearing installation, the force is even, and it is strictly forbidden to knock;

4. Bearings should be stored in a clean and ventilated place, without corrosive gas, and the relative humidity should not exceed 65%. Long-term storage should be regularly rusted.