Title:
RETAINER FOR ROLLING BEARING AND ROLLING BEARING
Document Type and Number:
Japanese Patent JP2023046361
Kind Code:
A
Abstract:
To provide a retainer for a rolling bearing which is a retainer in which a protrusion (a protruding part) of a resin is formed at each weld part and yet can inhibit increase of friction and torque during operation of the bearing, and to provide a rolling bearing.SOLUTION: A retainer 1 includes: an annular part 2; and multiple column parts 3 extending from the annular part 2 to one axial side. A rolling element is held in a circumferential space between the column parts 3. The annular part 2 and the column parts 3 are integrally formed by injection molding and at least the annular part 2 has weld parts W. Protruding parts 5 protruding in an axial direction are formed at the axial end side of the annular part 2 where the weld parts W are formed. When an axial dimension of the protruding part 5 is referred to as H and an axial thickness of the annular part 2 in a portion where the protruding part 5 is not formed is referred to as T, (H×100/T)<6.5% is satisfied.SELECTED DRAWING: Figure 2
Inventors:
MIYAMOTO NAOIKU
Application Number:
JP2021154971A
Publication Date:
April 04, 2023
Filing Date:
September 23, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C33/49; B29C45/00; F16C19/28; F16C33/41; F16C33/48; F16C33/56
Attorney, Agent or Firm:
Wake Hikari
Waki
Satoshi Teramoto
Waki
Satoshi Teramoto
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