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:
Jun. 05, 2018
Filed:
Jun. 25, 2014
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Tetsuya Kurimura, Mie, JP;
Fuyuki Ito, Mie, JP;
Shinji Komatsubara, Mie, JP;
Tadahiro Uchiyama, Aichi, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/14 (2006.01); B22F 3/16 (2006.01); H02K 7/08 (2006.01); C22C 9/00 (2006.01); F16C 32/06 (2006.01); F16C 33/10 (2006.01); B22F 1/00 (2006.01); B22F 5/00 (2006.01); C22C 1/04 (2006.01); F16C 33/12 (2006.01); C22C 9/02 (2006.01); F16C 17/08 (2006.01); F16C 17/10 (2006.01);
U.S. Cl.
CPC ...
F16C 33/145 (2013.01); B22F 1/0003 (2013.01); B22F 1/0014 (2013.01); B22F 3/16 (2013.01); B22F 5/00 (2013.01); C22C 1/0425 (2013.01); C22C 9/00 (2013.01); C22C 9/02 (2013.01); F16C 32/0633 (2013.01); F16C 33/104 (2013.01); F16C 33/128 (2013.01); H02K 7/08 (2013.01); B22F 2301/10 (2013.01); B22F 2301/30 (2013.01); B22F 2301/35 (2013.01); F16C 17/08 (2013.01); F16C 17/102 (2013.01); F16C 2204/10 (2013.01); F16C 2370/12 (2013.01);
Abstract
A sintered bearing includes a sintered metal formed by using a metal powder mixture containing copper powder and iron powder. The metal powder mixture contains 80 wt % or more of particles having an average particle diameter of less than 45 μm. The copper powder contains electrolytic copper powder. The electrolytic copper powder contains 40 number % or more of particles having a circularity of 0.64 or more.