Rolling bearing

Abstract

A rolling bearing comprises an outer ring (1), an inner ring (2), a plurality of rolling bodies (3) and a retainer (4). The outer peripheral surface of the outer ring (1) is provided with one or more annular grooves (7) along the circumferential direction; the groove (7) is provided with an O-shaped ring (6) protruding from the outer peripheral surface of the outer ring (1); the O-shaped ring (6) has a circular cross section; both ends of the inner bottom surface of the groove (7) are slot bottom circular beads; the O-shaped ring (6) has inner diameter tension rate x equal to (D1-D2) / D2, filling rate of area y equal to pi(d / 2)<2> / [h*(D-D1) / 2-(r<2>-pi*r<2> / 4)*2], a crushing rate z equal to deltad / d, wherein x, y and z satisfy the relations of: 1.3%<=x<=5%, 50%<=y<100%, and 21%<=z<=30%. The rolling bearing is easy for installation and can reliably prevent the outer ring (1) from wriggling.

Description

technical field [0001] The invention relates to a bearing, more specifically to a rolling bearing, which is suitable for an anti-creep rolling bearing device with an O-ring, and belongs to the technical field of bearing design. Background technique [0002] Rolling bearing is a precision mechanical component that connects the rotating shaft and the bearing seat. It includes an outer ring, an inner ring, a plurality of rolling elements and a cage. Equipped with an inner ring raceway. During installation and use, the shaft is installed in the inner hole of the inner ring, and the inner ring matches the shaft and rotates together with the shaft; the outer peripheral surface of the outer ring is installed in the inner hole of the bearing seat. [0003] In general motors, industrial sewing machines, electric tools, servo motors, etc., rolling bearings are often subjected to unbalanced rotational loads or vibrations; therefore, slow macroscopic relative sliding occurs between the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a rolling bearing for the existing anti-creep bearings, which are prone to creep, difficult to assemble, and O-rings are easily damaged.

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