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:
Oct. 03, 2006
Filed:
Nov. 06, 2003
Applicants:
Tetsuya Hayashi, Iwata, JP;
Kousuke Obayashi, Iwata, JP;
Shinji Oishi, Iwata, JP;
Inventors:
Assignee:
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
An object is to provide a cage and a thrust roller bearing with improved oil passage performance of a lubricating oil in the inside of a bearing while holding a needle roller in a stable manner so as to ensure excellent durability. The thrust roller bearing includes a needle roller and a cage holding the needle roller in pockets for accommodating the same. A length La of a roller holding portion provided in the pocket is set to be within a range of 30% to 80% of a length in a radial direction of the pocket.