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:
Sep. 24, 2013
Filed:
Sep. 10, 2008
Masahiro Ozawa, Iwata, JP;
Yuichi Asano, Iwata, JP;
Masayuki Kuroda, Takarazuka, JP;
Tohru Nakagawa, Iwata, JP;
Kiyoshige Yamauchi, Iwata, JP;
Mitsuru Umekida, Iwata, JP;
Masahiro Ozawa, Iwata, JP;
Yuichi Asano, Iwata, JP;
Masayuki Kuroda, Takarazuka, JP;
Tohru Nakagawa, Iwata, JP;
Kiyoshige Yamauchi, Iwata, JP;
Mitsuru Umekida, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A bearing device for a wheel suppresses backlash in a circumferential direction, has excellent coupling workability with a hub wheel and an outer joint member of a constant velocity universal joint, and has excellent strength owing to stable fitting between the hub wheel and the outer joint member. Projecting portions extending in an axial direction are provided on one of an outer surface of a shaft section of the outer joint member and an inner surface of a hole portion of the hub wheel. The projecting portions are press-fitted into the other along the axial direction, and recessed portions are formed in the other through press-fitting of the projecting portions. Thus, a recess-projection fitting structure is formed, in which the projecting portions and the recessed portions are held in close contact with each other through an entire region of fitting contact regions therebetween.