The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2020
Filed:
Feb. 17, 2016
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Tsuyoshi Koda, Shizuoka, JP;
Tomoyoshi Izutsu, Shizuoka, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/66 (2006.01); F16C 33/41 (2006.01); F16C 33/38 (2006.01); F16C 19/06 (2006.01);
U.S. Cl.
CPC ...
F16C 33/6681 (2013.01); F16C 19/06 (2013.01); F16C 33/3887 (2013.01); F16C 33/416 (2013.01); F16C 33/418 (2013.01); F16C 33/6629 (2013.01); F16C 2380/26 (2013.01);
Abstract
A retainer for a bearing is entirely formed into an annular shape and has a crown shape. The retainer includes pockets which are formed at a plurality of locations in a circumferential direction of the retainer and are each opened on a radially outer side and a radially inner side. The pockets retain balls being rolling elements so that the balls are rollable. A grease flow-in passage is provided between an inner surface of each of the plurality of pockets and each of the balls.