Bearing cage and bearing

Abstract

A bearing cage and a bearing are provided. The invention relates to the technical field of bearing, by designing a bearing cage with a conical arc structure at the bottom between pockets and a groovestructure at the bottom, the technical problem of reducing the service life of the bearing due to factors such as instability of the cage during high-speed operation, uneven distribution of internal lubricating grease, instability of the pocket shape and the like existing in the prior art is solved. The bearing cage includes a cage body provided with a plurality of pocket holes and a groove structure at the bottom of the cage; the bottom between adjacent pockets is provided with a conical arc structure. The bearing cage is used for the bearing, can keep the stable running of the bearing cage.The grease is distributed uniformly, the wall thickness between the arc surface at the bottom of the outer diameter and the inner surface of the pocket is consistent (close) with the wall thickness between the arc surface at the bottom of the cage and the inner surface of the pocket, so that the expansion amounts of the two materials are consistent (close) to ensure the shape of the pocket to be stable, so that the steel ball is guided normally and the service life of the bearing is prolonged.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a bearing cage and a bearing. Background technique [0002] Bearings are an important part of contemporary mechanical equipment. Its main function is to support the mechanical rotation, reduce friction during its movement, and ensure its rotation accuracy. The cage (that is, the bearing cage, also known as the bearing cage) refers to the bearing parts that partially wrap all or part of the rolling elements and move with them, to isolate the rolling elements, and usually guide the rolling elements and keep them in the bearing Inside. [0003] The existing bearing cage generally has a planar structure with a ring at the bottom, and a cage in the form of a pocket is provided on the upper part. The center of mass plane of this type of bearing cage deviates too much from the center plane of the pocket hole, and the cage runs unstable and is lubricated internally. The grease distri...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a bearing cage and a bearing. By designing a bearing cage with an axial conical arc structure and a bottom groove structure at the bottom between the pockets, the problem of the cage existing in the prior art is solved. Instability, internal grease accumulation, and pocket shape instability are technical issues that reduce bearing life

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