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. 23, 2010
Filed:
Aug. 20, 2008
Isao Hirai, Iwata, JP;
Takayuki Norimatsu, Iwata, JP;
Hiroya Kato, Iwata, JP;
Akira Fujimura, Iwata, JP;
Kikuo Fukada, Iwata, JP;
Isao Hirai, Iwata, JP;
Takayuki Norimatsu, Iwata, JP;
Hiroya Kato, Iwata, JP;
Akira Fujimura, Iwata, JP;
Kikuo Fukada, Iwata, JP;
NTN Corporation, , JP;
Abstract
A vehicle wheel bearing apparatus has an outer member with double row outer raceway surfaces on its inner circumferential surface. An inner member includes a wheel hub and at least one inner ring. An outer joint member forms a constant velocity universal joint. The outer joint member has a cup-shaped mouth portion. A shoulder portion forms the bottom of the mouth portion. A shaft portion axially extends from the shoulder portion. The shaft is axially separably and torque transmittably inserted into the wheel hub with the shoulder abutted against the caulked portion to transmit torque. The inner ring is axially secured relative to the wheel hub by a caulked portion. The caulked portion is formed by plastically deforming, radially outwardly, the end portion of the cylindrical portion. The caulked portion has a flat surface formed by a cutting process that is adapted to surface contact the shoulder. The radially outermost end of the flat surface is arranged so that it does not abut against the shoulder.