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, 2012
Filed:
Aug. 29, 2005
Applicant:
Takashi Tsujimoto, Shizuoka, JP;
Inventor:
Takashi Tsujimoto, Shizuoka, JP;
Assignee:
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/46 (2006.01); F16C 33/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tapered roller bearingcomprises an inner ring, an outer ring, a plurality of tapered rollersrollably disposed between the inner and outer ringsand, and a cagefor holding the tapered rollersin predetermined circumferentially spaced relation, wherein the roller coefficient exceeds 0.94, and with the cagepositioned at the axial center, there is a clearance between the cage and the raceway surface of the outer ring, and the roller abutting width of the pocket pole surface is secured across 10% or more of the pocket length axially from the central position of the pocket.