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rolling bearing

A technology of rolling bearings and rolling elements, applied in the field of rolling bearings, can solve problems such as damage to the casing

Inactive Publication Date: 2021-03-09
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If creep occurs, there is a possibility that, for example, the outer ring 92 may damage the casing 97

Method used

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Embodiment Construction

[0019] Hereinafter, embodiments of the present invention will be described based on the drawings. figure 1 It is a sectional view showing an example of the rolling bearing of the present invention. exist figure 1 Among them, the rolling bearing 7 is provided in a rotating device having a casing 2 and a rotating shaft 4 , and supports the rotating shaft 4 so as to be rotatable with respect to the casing 2 . The rotary shaft 4 has a small-diameter shaft portion 4a and a large-diameter shaft portion 4b. The rolling bearing 7 is externally fitted and attached to the small-diameter shaft portion 4a. The outer diameter of the large-diameter shaft portion 4b is larger than that of the small-diameter shaft portion 4a. The inner ring 11 of the rolling bearing 7 is in contact with the large-diameter shaft portion 4b from the axial direction. An annular portion 5 is provided on one axial side of an inner peripheral surface 3 of the housing 2 (hereinafter also referred to as a housi...

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PUM

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Abstract

The invention provides a rolling bearing. In the rolling bearing in which one of the inner ring and the outer ring is a rotating ring and the other is a fixed ring, the fitting surfaces of the fixed ring attached to the counterpart member are respectively formed on the first partial peripheral surface and the second partial peripheral surface, The first partial peripheral surface is a partial peripheral surface formed on one side in the axial direction, which is located on the radially outer side of the fixed ring and faces the counterpart member, and the second partial peripheral surface is the surface In the partial peripheral surface formed on the other side in the axial direction from the first partial peripheral surface, an annular groove for preventing creep is formed between the first partial peripheral surface and the second partial peripheral surface. , the annular groove has a depth such that the groove bottom of the annular groove cannot come into contact with the counterpart member when a rated static load in the radial direction acts.

Description

[0001] The disclosure of Japanese Patent Application No. 2016-075143 filed on Apr. 4, 2016 including its specification, drawings and abstract is hereby incorporated by reference in its entirety. technical field [0002] The invention relates to a rolling bearing. Background technique [0003] A large number of rolling bearings are used in various industrial equipment. A rolling bearing has an inner ring, an outer ring, a plurality of rolling elements, and a cage. The rolling elements are arranged between the inner ring and the outer ring. The cage holds the rolling elements. For example, if Figure 7 As shown, in the rolling bearing 90 supporting the rotating shaft 95 in the housing 97 , the inner ring 91 is fitted on the rotating shaft 95 and the outer ring 92 is attached to the inner peripheral surface 98 of the housing 97 . [0004] In particular, when the rolling bearing 90 is a deep groove ball bearing and a unidirectional axial load acts on it, the inner ring 91 and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C19/16F16C33/58
CPCF16C19/16F16C33/585F16C35/067F16C2240/42F16C2226/10F16C19/06F16C33/586
Inventor 神保友彦
Owner JTEKT CORP