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:
Sep. 16, 2014
Filed:
Dec. 19, 2008
Shinji Oishi, Iwata, JP;
Yugo Yoshimura, Iwata, JP;
Katsufumi Abe, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A roller bearing retainer () includes a pair of annular ring parts () and a plurality of column parts () each including a column center part () provided in an axial center region so as to be positioned relatively on the radial inner side, a pair of column end parts () provided in axial end regions so as to be positioned relatively on the radial outer side, and a pair of column sloped parts () positioned between the column center part () and the pair of column end parts (), and connecting the pair of ring parts to each other. A thickness of each part of the column center part, the pair of column end parts, and the pair of column sloped parts is smaller than a thickness of a boundary part between the adjacent parts.