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:
Jul. 22, 2014
Filed:
Apr. 18, 2005
Applicant:
Takashi Tsujimoto, Iwata, JP;
Inventor:
Takashi Tsujimoto, Iwata, JP;
Assignee:
NTN Corporation, Osaka-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/58 (2006.01); F16C 33/48 (2006.01); F16C 19/00 (2006.01); F16C 33/66 (2006.01); F16C 33/46 (2006.01); F16C 19/36 (2006.01); F16H 48/42 (2012.01);
U.S. Cl.
CPC ...
F16C 33/6681 (2013.01); F16C 2240/34 (2013.01); F16H 2048/423 (2013.01); F16C 33/4635 (2013.01); F16C 33/4605 (2013.01); F16C 2240/82 (2013.01); F16C 19/364 (2013.01); F16C 2240/84 (2013.01); F16C 2361/61 (2013.01); F16C 2240/30 (2013.01);
Abstract
A tapered roller bearing is used in transmissions or differentials for automobiles. The tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers rollably disposed between the inner and outer rings, and a cage for holding the tapered rollers at circumferential predetermined intervals. The roller coefficient γ exceeds 0.94, where γ is (the number of rollers×mean roller diameter)/(π×PCD).