Title:
ANGULAR BALL BEARING CAGE AND ANGULAR BALL BEARING
Document Type and Number:
WIPO Patent Application WO/2023/132196
Kind Code:
A1
Abstract:
[Problem] To achieve the structure of an angular ball bearing cage capable of reducing stirring resistance or friction generated between the cage and solidified grease. [Solution] Each of a plurality of column portions comprising: a first branch portion and a second branch portion that are provided, in an end portion on one side in the axial direction, to extend in the circumferential direction in a form of a bifurcation; and a grease storage groove formed in a portion therebetween. The tip portion of the first branch portion of one column portion and the tip portion of the second branch portion of a column portion adjacent to the one column portion extend toward directions of approaching each other in the circumferential direction and are connected to each other in the circumferential direction. The tip portion of the second branch portion of the one column portion and the tip portion of the first branch portion of a column portion adjacent to the one column portion extend toward directions of approaching each other in the circumferential direction and are connected to each other in the circumferential direction.
Inventors:
FUKUHARA YUKI (JP)
Application Number:
PCT/JP2022/046078
Publication Date:
July 13, 2023
Filing Date:
December 14, 2022
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C19/18; B60B35/02; B60B35/14; F16C33/38; F16C33/66
Foreign References:
| JP2021181811A | 2021-11-25 | |||
| JP2016070470A | 2016-05-09 | |||
| JPH0814258A | 1996-01-16 | |||
| JP2018059546A | 2018-04-12 | |||
| JP2020133741A | 2020-08-31 |
Attorney, Agent or Firm:
KIWA INTERNATIONAL (JP)
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