Angular contact ball bearings often need to be used in pairs, then what are the characteristics of paired angular contact ball bearings, what are the advantages and importance of paired installation, and how to install it?Single row angular contact ball bearings can only bear the axial load in one direction, and will cause additional axial force when they bear the radial load.And only limit the axial displacement of the shaft or shell in one direction.The diagonal contact ball bearing can bear radial and axial loads at the same time.It can work at high speed.The larger the contact Angle, the higher the axial bearing capacity.High precision and high speed bearings usually have a 15 degree contact Angle.The contact Angle increases under the action of axial force.

Is a pair of double installation, so that the outer rings of a pair of bearings are opposite, that is, the wide end faces the wide end face, the narrow end faces the narrow end face.This avoids causing additional axial forces and restricts the shaft or housing to axial clearance in both directions.Because the raceway 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 (single row angular contact ball bearings can only bear single direction axial load, so they are usually installed in pairs).The cage is made of nylon, synthetic resin, etc., which can be distinguished according to bearing form and use condition.

The installation of NSK angular contact ball bearings is more complex than that of deep groove ball bearings, which are mostly installed in pairs and require preloading.If installed well, the working precision and bearing life of the main engine can be greatly improved.Otherwise, not only the accuracy is not up to the requirements, but also the life will be affected.

There are three kinds of back-to-back, face to face and series arrangement.When back-to-back (the wide end faces of the two bearings are opposite) are installed, the contact Angle line of the bearing diffuses along the direction of the rotation axis, which can increase the radial and axial support Angle rigidity and the maximum anti-deformation ability.When installed face to face (the narrow end faces of the two bearings are opposite), the contact Angle line of the bearing converges in the direction of the rotation axis, and the ground bearing Angle is less rigid.Because the inner ring of the bearing extends out the outer ring, when the outer rings of the two bearings are pressed together, the original clearance of the outer ring is eliminated, and the preloading load of the bearing can be increased.