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:
Sep. 14, 2004
Filed:
May. 15, 2002
Applicant:
Inventors:
Akiyuki Suzuki, Kashihara, JP;
Hiroki Matsuyama, Kitakatsuragi-gun, JP;
Yasunari Abo, Kitakatsuragi-gun, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 1/936 ;
U.S. Cl.
CPC ...
F16C 1/936 ;
Abstract
A tapered roller bearing in which tapered rollers are interposed between an inner ring member and an outer ring member and a large diameter flange having a guide surface guiding a large diameter side end face of a tapered roller is provided in an end portion in an axial direction of the inner ring member. Microscopic streaked grinding trails are arranged in multiple directions on the large diameter side end face of the tapered roller.