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:
Aug. 14, 2012
Filed:
Jul. 10, 2006
Isao Hirai, Iwata, JP;
Kohei Yoshino, Iwata, JP;
Takayasu Takubo, Iwata, JP;
Akira Fujimura, Iwata, JP;
Takuya Obata, Iwata, JP;
Isao Hirai, Iwata, JP;
Kohei Yoshino, Iwata, JP;
Takayasu Takubo, Iwata, JP;
Akira Fujimura, Iwata, JP;
Takuya Obata, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A wheel support bearing assembly, which enables an increase in the strength and the fatigue strength of its wheel mounting flange or vehicle body fitting flange against high stress and repeated stress and the suppression of the increase of the number of processes, includes an inner member and an outer member rotatable relative to each other through rolling elements. The flange is formed on the inner member or the outer member. A component part having the flange is a hot-forged product of steel in which a matrix portion is formed as a standard structure and the non-standard structural portion is formed on the surface of the flange. The non-standard structure is formed of either of a fine ferrite/pearlite structure, an upper bainite structure, a lower bainite structure, and a tempered martensite structure, or mixture of two or more of these structures.