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:
Jan. 05, 1993
Filed:
Jul. 02, 1991
Applicant:
Inventors:
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ; F16C / ;
U.S. Cl.
CPC ...
384493 ; 384492 ; 384537 ;
Abstract
A rolling bearing suitable for use in a high temperature atmosphere is provided. The bearing is partly or entirely made of a ceramic material with at least its inner ring being made of a ceramic material so as to improve the rotational and antiabrasive efficiencies thereof in a high temperature operating condition. Further, in order to prevent both chamfered ends of the inner ring from cracking or chipping, the inner peripheral surface is crowned to have a Lundberg profile thereby avoiding a local concentration of stress on the inner ring.