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. 19, 2013
Filed:
Jun. 30, 2009
Applicant:
Shinichi Takabe, Iwata, JP;
Inventor:
Shinichi Takabe, Iwata, JP;
Assignee:
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 3/223 (2011.01); F16D 3/84 (2006.01);
U.S. Cl.
CPC ...
Abstract
A constant velocity universal joint has a boot with enhanced durability and compactness, which are achieved by suppressing abrasion of the boot. The constant velocity universal joint includes an outer joint member, an inner joint member, a torque transmitting member, a shaft, and a boot. The surface roughness of an outer peripheral surface of the shaft satisfies Rsk<0, Rpk<2 μm, and Ra<4 μm.