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:
Mar. 06, 2012
Filed:
Jul. 14, 2006
Akihiko Katayama, Kikugawa, JP;
Shinji Oishi, Iwata, JP;
Yugo Yoshimura, Iwata, JP;
Noriaki Fujii, Wako, JP;
Tomoya Fujimoto, Wako, JP;
Akihiko Katayama, Kikugawa, JP;
Shinji Oishi, Iwata, JP;
Yugo Yoshimura, Iwata, JP;
Noriaki Fujii, Wako, JP;
Tomoya Fujimoto, Wako, JP;
NTN Corporation, Osaka, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A needle roller bearing comprises an outer ring having a plurality of outer ring members split by a parting line extending in the axial direction of the bearing, a plurality of needle rollers rotatably arranged on the raceway surface of the outer ring, and a retainer retaining the plurality of needle rollers. A curvature radius rof the outer ring member and a curvature radius rof the outer diameter of the retainer has a relation such that 1<r/r<1.3.