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. 12, 2013
Filed:
Oct. 16, 2008
Katsutoshi Muramatsu, Kuwana, JP;
Masaaki Honda, Kuwana, JP;
Hikaru Ishida, Kuwana, JP;
Nobuyuki Ninoyu, Kuwana, JP;
Katsutoshi Muramatsu, Kuwana, JP;
Masaaki Honda, Kuwana, JP;
Hikaru Ishida, Kuwana, JP;
Nobuyuki Ninoyu, Kuwana, JP;
NTN Corporation, Osaka-Shi, JP;
Abstract
Each of an outer ring, an inner ring, and a ball is a rolling contact member formed of a β-sialon sintered body inexpensive, capable of reliably ensuring sufficient durability, and capable of being used in an application where an imposed load is changed abruptly. The sintered body contains as a main component β-sialon represented by a compositional formula of SiAlONand satisfying 0.1≦z≦3.5, and has a remainder formed of an impurity. The rolling contact member has a Young's modulus of 180 GPa or greater but 270 GPa or smaller.