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:
Aug. 26, 2008
Filed:
Dec. 20, 2006
Applicant:
Takuya Yamamoto, Nagano-ken, JP;
Inventor:
Takuya Yamamoto, Nagano-ken, JP;
Assignee:
Minebea Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/41 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retainer for holding bearings within a shaft bearing has C-shaped pockets for holding the bearings. Between the pockets are connecting portions, which are close to the openings of the pockets. The rear sides of adjacent pockets and the rear side of the connecting portion for the adjacent pockets form a concave site that is deeply gouged into the retainer. The bottom of the concave site is closer to the openings than the bottom of the pockets, thereby allowing base oil from grease in the concave site to better migrate onto the bearings and so lubricate the shaft bearing.