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:
Jun. 05, 2012
Filed:
Feb. 19, 2008
Applicants:
Hisashi Ohtsuki, Iwata, JP;
Kikuo Maeda, Kuwana, JP;
Inventors:
Hisashi Ohtsuki, Iwata, JP;
Kikuo Maeda, Kuwana, JP;
Assignee:
NTN Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a wheel support bearing assembly in which at least one of the outer member () and inner member, which includes a wheel mounting flange (), is, after having been forged, air cooled or thermally refined. The respective rolling surfaces of the outer member () and the inner member are hardened to have a predetermined surface hardness. The root radial dimension of the section of a groove bottom arc in the serrations () of the hub unit () is regulated to a value within the range of 0.2 mm to 0.8 mm.