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. 28, 1989
Filed:
Oct. 21, 1987
Applicant:
Inventors:
Kouichi Ueda, Osaka, JP;
Kouichi Yamauchi, Osaka, JP;
Hiroaki Takebayashi, Osaka, JP;
Kazuo Rokkaku, Osaka, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ; F16C / ;
U.S. Cl.
CPC ...
384492 ; 384510 ; 3849071 ;
Abstract
A structure of attaching to a metal shaft a ceramics bearing which comprises an inner ring, an outer ring and rolling members and in which at least the inner ring is made of ceramics. The inner ring is made of silicon nitride or sialon molded by the hot press sintering process or the hot isostatic press sintering process. The shaft is press-fitted in the inner ring with an interference of not greater than a specified value.