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:
May. 17, 2011
Filed:
Dec. 28, 2009
Isao Hirai, Iwata, JP;
Takayasu Takubo, Iwata, JP;
Kiyotake Shibata, Iwata, JP;
Syougo Suzuki, Iwata, JP;
Isao Hirai, Iwata, JP;
Takayasu Takubo, Iwata, JP;
Kiyotake Shibata, Iwata, JP;
Syougo Suzuki, Iwata, JP;
NTN Corporation, , JP;
Abstract
A vehicle wheel bearing apparatus has an outer member, an inner member, and double row rolling elements freely rollably contained between the inner and outer raceway surfaces of the inner and outer members. A brake pilot portion extends from a base of a wheel hub mounting flange toward the outer side to guide an inner circumferential surface of a brake rotor. A wheel pilot portion extends from the brake pilot portion further toward the outer side to guide an inner circumferential surface of the wheel. The wheel pilot portion including a plurality of separated pilots separated along a circumferential direction. A chamfered portion is formed, by forging, on a forward end of each separated pilot in view of its lathe cutting direction. The chamfered portion has a predetermined inclined angle relative to an axial end surface of each separated pilot after lathe cutting.