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. 13, 2016
Filed:
Dec. 21, 2015
Toshihiko Mouri, Aichi, JP;
Noriyoshi Yoshizuka, Aichi, JP;
Yousuke Sugai, Aichi, JP;
Fuminori Satoji, Aichi, JP;
Toshihiko Mouri, Aichi, JP;
Noriyoshi Yoshizuka, Aichi, JP;
Yousuke Sugai, Aichi, JP;
Fuminori Satoji, Aichi, JP;
NTN CORPORATION, Osaka, JP;
Abstract
Provided is a sintered bearing () including an inner layer () and an outer layer () formed by integral molding, the sintered bearing () having a bearing surface (A) formed on an inner peripheral surface () of an inner layer (). The inner layer () is made of sintered metal containing Fe and a hardness increasing element (such as Ni or Mo). The outer layer () is made of sintered metal containing Fe and no hardness increasing element. A concentration gradient of the hardness increasing element is present at an interface between the inner layer () and the outer layer ().