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:
Apr. 19, 2011
Filed:
Apr. 05, 2005
Satoshi Kadokawa, Kanagawa, JP;
Makoto Hinohara, Kanagawa, JP;
Syuuichi Tsubouchi, Kanagawa, JP;
Noriyuki Takeo, Kanagawa, JP;
Makoto Fujinami, Kanagawa, JP;
Satoshi Kadokawa, Kanagawa, JP;
Makoto Hinohara, Kanagawa, JP;
Syuuichi Tsubouchi, Kanagawa, JP;
Noriyuki Takeo, Kanagawa, JP;
Makoto Fujinami, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
Even when used at a high rotation speed, outside parts in relation to the radial direction of a cage, of the circumferential parts of a pocketare kept from being worn away by outside end surfacesof rollers. Moreover the rollersare kept from sliding on the inside the pockets, to thereby stabilize the performance of rotation support parts. The outside end surfaceof the rolleris made a ball convex surface, so that the center part of the outside end surfacecan be freely in contact with the inner peripheral surface of a second outside cylindrical portion. In a condition with the rollersdisplaced radially outward of the cagedue to centrifugal force, a PV value of a rubbing part between the outside end surfaceand the opposite surface is kept low, and the wear of this rubbing part is suppressed.