Do you know method of angular contact bearing arrangement?

Do you know the method of angular contact bearing arrangement?
The installation of angular contact bearing is more complicated than that of deep groove ball bearings.Good angular contact bearing arrangement can greatly improve the working accuracy and bearing life of the main engine.Otherwise, not only the accuracy can not meet the requirements, but also the life will be affected.

Method of angular contact bearing arrangement in back-to-back, face to face or in series.When mounted back-to-back (the wide end faces of the two bearings are opposite) angular contact bearing arrangement, the contact Angle line of the bearing diffuses along the direction of the axis of rotation, which can increase the rigidity of the radial and axial supporting angles and maximize the anti-deformation ability.

When mounted face to face (the narrow end faces of the two bearings are opposite) angular contact bearing arrangement, the contact Angle line of the bearing converges towards the direction of rotation axis, and its ground bearing Angle is less rigid.Since 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 preloading load of the bearing.When mounting in series (the wide end faces of the two bearings are in one direction) angular contact bearing arrangement, the contact Angle lines of the bearings are in the same direction and parallel, which can make the two bearings share the working load in the same direction.However, in this form of mounting, two pairs of bearings in series must be mounted on opposite ends of the shaft in order to ensure axial stability of the mounting.
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