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. 23, 2014
Filed:
Mar. 28, 2008
Kazuo Komori, Iwata, JP;
Masahiro Kiuchi, Iwata, JP;
Kazuhiro Baba, Iwata, JP;
NTN Corporation, Osaka-shi, JP;
Abstract
A vehicle wheel bearing apparatus has an outer member () formed with double row outer raceway surfaces () on its inner circumferential surface. Inner members () are each formed with double row inner raceway surfaces () on its outer circumferential surface arranged opposite to the double row outer raceway surfaces (). Double row ball groups () are freely rollably contained between the outer raceway surfaces () and inner raceway surfaces () of the inner members () and the outer member (). A pitch circle diameter (PCDo) of a ball group () near a wheel mounting flange () is larger than a pitch circle diameter (PCDi) of a ball group () away from the wheel mounting flange (). Each corner of the shoulders of the outer and inner raceway surfaces () is rounded as a smooth circular arc.