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:
Mar. 01, 2005
Filed:
May. 27, 2003
Applicants:
Hiroki Matsuyama, Nara, JP;
Kanichi Kouda, Osaka, JP;
Inventors:
Hiroki Matsuyama, Nara, JP;
Kanichi Kouda, Osaka, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C033/36 ;
U.S. Cl.
CPC ...
Abstract
In a tapered roller bearing having an outer ring whose outside diameter is D, an inner ring whose inside diameter is d, and a plurality of tapered rollers whose pitch circle diameter is dm, a setting is provided such that a PCD parameter expressed by 2 dm/(D+d) is a value which falls within the range of 0.96 to 0.985.