Title:
BEARING DEVICE, MANUFACTURING METHOD OF CAGE, AND GRIP MEMBER
Document Type and Number:
Japanese Patent JP2015194240
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a bearing device which can be reduced in manufacturing costs.SOLUTION: An angular ball bearing 10 has an outer ring 11, an inner ring 12, a plurality of balls 13 arranged between the outer ring 11 and the inner ring 12, and a cage 14 for holding the plurality of the balls 13. The cage 14 has a large-diameter annular part 14a and a small-diameter annular part 14b, a plurality of column parts 14c for connecting the large-diameter annular part 14a and the small-diameter annular part 14b to each other in an axial direction, and a pocket part 14d which is defined by the large-diameter annular part 14a, the small-diameter annular part 14b, and the column parts 14c which adjoin each other in a circumferential direction, and holds the balls 13. A width b' in an axial direction of an external peripheral face of the large-diameter annular part 14a is 10 to 30% of a width B in an axial direction of the cage 14.
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Inventors:
TANABE KOICHI
Application Number:
JP2014195145A
Publication Date:
November 05, 2015
Filing Date:
September 25, 2014
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/38; B23B1/00; B23B5/38; B23B31/02; B23B31/10; F16C19/06
Attorney, Agent or Firm:
Patent business corporation glory patent office
Yuriko Hamada
Kenji Kitajima
Hironori Honda
Yuriko Hamada
Kenji Kitajima
Hironori Honda