Adjustment-free hub capable of preventing rotating of outer rings of heavy truck hub bearings and axial playing

Abstract

The invention discloses an adjustment-free hub capable of rotating of outer rings of heavy truck hub bearings and axial playing. The hub comprises a hub shell, an inner bearing, an outer bearing, a rigid spacer and pins. The bearings and the rigid spacer are located inside the hub shell. The inner bearing is connected with the outer bearing through the rigid spacer. The adjustment-free hub is characterized in that the outer rings of the inner bearing and the outer bearing are fixed through the pins and retaining shoulders inside bearing cavities on the hub shell. By adopting the structure, the accuracy of axial playing of a hub shaft is guaranteed, the outer rings of the bearings are prevented from rotating in the using process, and the service life and the reliability of an axle is guaranteed.

Description

technical field [0001] The invention belongs to the application field of axle hubs, and in particular relates to an anti-heavy truck hub bearing rotating outer ring and an axial clearance-free debugging hub. Background technique [0002] At present, in production practice, it is found that there are two major problems in the installation and use of existing heavy truck axle hub bearings: one is that the axial clearance of the axle hub is determined by the experience of workers during the assembly process, and improper axial clearance will lead to Excessive heating or shaking of the hub; second, the outer ring of the heavy-duty hub bearing rotates during use, resulting in wear of the bearing and the bearing chamber, and early failure of the bearing and the hub shell. For the rotation of the outer ring of the bearing, the axle manufacturers have not had a feasible method for a long time, resulting in high after-sales claims; for the axial clearance, the axle manufacturers have...

AI Technical Summary

Problems solved by technology

[0002] At present, in production practice, it is found that there are two major problems in the installation and use of existing heavy truck axle hub bearings: one is that the axial clearance of the axle hub is determined by the experience of workers during the assembly process, and improper axial clearance will lead to Excessive heating or shaking of the hub; second, the outer ring of the heavy-duty hub bearing rotates during use, resulting in wear of the bearing and the bearing chamber, and early failure of the bearing and the hub shell

For the rotation of the outer ring of the bearing, the axle manufacturers have not had a feasible method for a long time, resulting in high after-sales claims; for the axial clearance, the axle manufacturers have not improved and optimized for a long time. Very few parts manufacturers, although they provide Use elastic spacers, but clearance adjustment depends on experience, which requires high technical level of operators, and elastic spacers are disposable, improper pre-tightening force will also cause unnecessary waste

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