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:
Nov. 01, 2011
Filed:
Mar. 26, 2007
Tsuyoshi Kamikawa, Nara, JP;
Yoshito Takada, Nara, JP;
Masaru Deguchi, Kashihara, JP;
Ken Adachi, Kashiba, JP;
Youichi Tsuzaki, Kashiba, JP;
Seiji Yamamoto, Yao, JP;
Changxin Yu, Kashiwara, JP;
Masao Takimoto, Kashiwara, JP;
Tetsuya Ishikawa, Kashiwara, JP;
Syuuji Nagata, Osaka, JP;
Tsuyoshi Kamikawa, Nara, JP;
Yoshito Takada, Nara, JP;
Masaru Deguchi, Kashihara, JP;
Ken Adachi, Kashiba, JP;
Youichi Tsuzaki, Kashiba, JP;
Seiji Yamamoto, Yao, JP;
Changxin Yu, Kashiwara, JP;
Masao Takimoto, Kashiwara, JP;
Tetsuya Ishikawa, Kashiwara, JP;
Syuuji Nagata, Osaka, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
A wheel bearing apparatus includes a roller bearing, an inner shaft having an outer circumferential surface to which an inner ring of the roller bearing is installed, a coupler ring attached to an end portion of the inner shaft, and a caulked portion provided in an end portion of the inner shaft so as to fix the coupler ring and the roller bearing to the inner shaft so as to be immovable in an axial direction of the inner shaft. An outer diameter of the coupler ring is set smaller than a diameter of a shoulder portion of the inner ring. Alternatively, a protruding portion is provided in any one of opposing end surfaces of the coupler ring and the inner ring, whereby the coupler ring is arranged away from a seal member. Accordingly, it is possible to avoid an interference of the coupler ring with the seal member.