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:
Feb. 04, 2003
Filed:
Dec. 20, 2000
Tetsuo Unno, Kanagawa, JP;
Yoshio Shoda, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
In the roller bearing, plural of rollers are interposed between an outer raceway of an outer race and an inner raceway of an inner race and a collar portion is formed along one of the axial-direction end portions of the inner raceway The central portion of one of the outer race and inner raceways and the opposing outer peripheral surface of the roller is formed of a first bus with a given radius of curvature. The two end portion sides adjacent to the central portion are formed of a second bus with such a radius of curvature that causes the two end portion sides to part away from the other. The collar surface of the collar portion contacting with an end face of the roller being a convex-shaped spherical surface is formed as a concave-shaped spherical surface.