A bearing pair and bearing pair assembly

Abstract

The invention provides a bearing pair and a bearing pair assembly. The bearing pair comprises a left bearing and a right bearing, wherein the axes of the left bearing and the right bearing extend in the left-right direction. The bearing pair further comprises an annular installation space arranged on one of the bearings or crossing the butt-joint end surfaces of the left bearing and the right bearing, having an axis extending along in the left-right direction, and used for installing a preloaded spring, wherein a left stop surface used for limiting the preloaded spring to move to the left is arranged on the left bearing and at the left side of the annular installation space; and a right stop surface used for limiting the preloaded spring to move to the right is arranged on the right bearing and at the right side of the annular installation space. The bearing pair assembly provided by the invention is simple in structure, low in manufacturing cost, and low in pairing difficulty; and axial preloading for the bearing pair is realized through the preloaded spring, the operation is flexible and convenient, the preloading is effective and insusceptible to external environment temperature, and control for the preloading is accurate and convenient.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a bearing pair and a bearing pair assembly. Background technique [0002] In order to improve the rigidity and carrying capacity of bearings, bearings of the same specification are often paired to form bearing pairs, especially for angular contact ball bearings and deep groove ball bearings, two bearings are combined to form bearing pairs in engineering The application in bearings is very common. The main purpose of forming a bearing pair is to make the single bearing in the bearing pair generate axial preload so as to improve the contact stiffness of the bearing. [0003] The two bearings of the bearing pair are used side by side, and the opposite ends are in contact with each other without a reserved gap. The traditional preloading method is generally to process the protrusion on the end faces of the inner rings or outer rings of the two bearings that are away from each other....

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a bearing pair that can be preloaded by a spring, which solves the problems of high processing cost and poor use effect that require processing bosses on the end face of the bearing when rigid preload is used in the prior art; at the same time, the present invention also provides A bearing pair assembly using the bearing pair is provided

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