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Bearing cage and bearing

A technology for bearing cages and ball bearings, applied in the field of cages, can solve the problems of deterioration of bearing performance, reduction of bearing performance, increase of friction between cages and rolling elements, etc.

Pending Publication Date: 2022-03-18
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The snap-fit ​​cages of the prior art have the disadvantage that as the rotational speed increases, the cantilever portions bend radially outward due to the increased centrifugal force, resulting in the so-called umbrella effect
Umbrella effect deteriorates the matching relationship between the pockets and rolling elements, resulting in increased friction between the cage and rolling elements, deteriorating performance and / or failure of the bearing
[0005] Proper lubrication is critical to high performance bearings, too much or not enough grease can degrade bearing performance

Method used

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  • Bearing cage and bearing
  • Bearing cage and bearing
  • Bearing cage and bearing

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Embodiment Construction

[0041] Hereinafter, preferred embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. In the following description of the present disclosure, detailed descriptions of known functions and configurations incorporated herein are omitted in order to make the subject matter of the present disclosure clearer.

[0042] As used herein, the singular forms and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. The terms "comprising", "comprising" and their variants used herein specify the presence of stated features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps , operation, element, component and / or group thereof. As used herein, the term "and / or" and the symbol " / " are meant to include any and all combinations of one or more of the associated listed items. Also, although the te...

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Abstract

The invention provides a bearing retainer and a bearing. The bearing cage includes: a substantially annular trunk having a front side and an opposite rear side; a plurality of cantilevered portions extending in an axial forward direction of the bearing cage from a front side of the trunk, the cantilevered portions being arranged along a circumference of the annular trunk, defining a plurality of pockets for receiving rolling elements of the bearing wherein a radial thickness of the trunk is greater than a radial thickness of the plurality of cantilevered portions, wherein each of the plurality of cantilevered portions includes two forks and a connecting portion between the two forks, and wherein the bearing cage further includes at least one of: a plurality of recesses formed radially outward of the cantilevered portions, each recess defined by the connecting portion recessed from the associated two forks, the recesses opening from an axial forward side of the bearing cage; a plurality of grooves (112) are formed in a radially inner side (102) of the bearing cage.

Description

technical field [0001] The present disclosure generally relates to cages for ball bearings and ball bearings including such cages. The invention also relates to a one-way fastening type bearing cage and a deep groove ball bearing including the bearing cage, especially the bearing cage and the bearing suitable for high rotating speed. Background technique [0002] Ball bearings, especially deep groove ball bearings, are widely used due to their low rotational friction and high speed performance. One-way snap-fit ​​cages have the advantages of low cost and easy installation, so they are often used with ball bearings, especially deep groove ball bearings. [0003] A typical one-way snap-fit ​​cage includes a generally annular trunk portion and a plurality of cantilever portions extending from one side of the trunk portion in an axial direction. The cantilever portions are spaced apart from each other along the circumference of the annular trunk portion defining a plurality of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/38F16C33/66
CPCF16C33/3843F16C33/6614F16C33/6629F16C33/414F16C19/06F16C2240/70F16C33/418
Inventor 安洪元R.雷斯蒂夫
Owner AB SKF