Advantages of paired installation:
If it is installed in pairs, the outer rings of a pair of bearings are opposite to each other, that is, the wide end faces the wide end face, and the narrow end faces the narrow end face. This avoids causing additional axial forces and confines the shaft or housing to the axial play in both directions. Because the raceways of the inner and outer rings can have relative displacement on the horizontal axis, angular contact ball bearings can bear radial load and axial load at the same time - combined load.

Cage:
Nylon and synthetic resin.

Why use in pairs:
Most angular contact ball bearings are mounted in pairs and require preloading. Good installation can greatly improve the working accuracy and bearing life of the main engine; otherwise, not only the accuracy will not meet the requirements, but also the life will be affected.

Angular contact ball bearings are mounted back-to-back, face-to-face and in tandem.

(1) When installed back-to-back (the wide end faces of the two bearings are opposite to each other), the contact angle line of the bearing expands along the direction of the rotation axis, which can increase its radial and axial support angular rigidity and deformation resistance.

(2) When installed face to face (the narrow end faces of the two bearings are opposite to each other), the contact angle of the bearing converges in the direction of the rotation axis, and the angular stiffness of the ground bearing is small. Since the inner ring of the bearing extends out of the outer ring, when the outer rings of the two bearings are When pressed together, the original clearance of the outer ring is eliminated and the preload of the bearing can be increased.