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:
Nov. 05, 2002
Filed:
Jan. 16, 2001
Takashi Nogi, Fujisawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A comb-shaped cage for use in a roller bearing having one circular portion axially opposed to the end surface of each of rollers and a plurality of bar portions protruding from one or both axial sides of the circular portion and arranged circumferentially opposed to the rolling surface of each rollers is disclosed. It is designed so as to satisfy the condition 0.2≦(I ′/I ′)≦2.5, wherein I ′ expresses the moment of inertia of area for the circular portion relative to a neutral axis parallel with the longitudinal direction of the bar portion and I ′ expresses the moment of inertia of area for the bar portion relative to a neutral axis parallel with the circumferential direction of the cage. This enables to improve the strength of the cage without lowering the load capacity of the bearing to which the cage is assembled.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile