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. 26, 2013
Filed:
Dec. 04, 2007
Yoshikazu Fukumura, Iwata, JP;
Hisaaki Kura, Iwata, JP;
Shin Tomogami, Iwata, JP;
Hiroshi Kawamura, Iwata, JP;
Kiyoshige Yamauchi, Iwata, JP;
Masahiro Ozawa, Iwata, JP;
Tohru Nakagawa, Iwata, JP;
Yuichi Asano, Iwata, JP;
Yoshikazu Fukumura, Iwata, JP;
Hisaaki Kura, Iwata, JP;
Shin Tomogami, Iwata, JP;
Hiroshi Kawamura, Iwata, JP;
Kiyoshige Yamauchi, Iwata, JP;
Masahiro Ozawa, Iwata, JP;
Tohru Nakagawa, Iwata, JP;
Yuichi Asano, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A wheel bearing device suppresses backlash in the circumferential direction and has excellent workability in connecting a hub wheel and an outer joint component of a constant velocity universal joint. The wheel bearing device has a stem shaft of an outer joint component of a constant velocity universal joint fitted into a hole section of a hub wheel that is integrated with the hub wheel by a projection and recess mating structure. In the projection and recess mating structure, an overall recess mating area of a projection is in close contact with a corresponding recess.