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:
Jan. 01, 2019
Filed:
Mar. 04, 2015
Applicant:
Ntn Corporation, Osaka, JP;
Inventor:
Fuyuki Ito, Mie, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/00 (2006.01); B22F 3/02 (2006.01); B22F 3/10 (2006.01); B22F 3/17 (2006.01); B22F 3/24 (2006.01); B22F 5/10 (2006.01); B22F 7/00 (2006.01); B22F 7/06 (2006.01); F16C 17/02 (2006.01); F16C 17/10 (2006.01); F16C 33/10 (2006.01); F16C 33/12 (2006.01); F16C 33/14 (2006.01);
U.S. Cl.
CPC ...
F16C 33/128 (2013.01); B22F 3/17 (2013.01); B22F 3/24 (2013.01); B22F 5/106 (2013.01); B22F 7/008 (2013.01); B22F 7/06 (2013.01); F16C 17/026 (2013.01); F16C 17/102 (2013.01); F16C 17/107 (2013.01); F16C 33/107 (2013.01); F16C 33/122 (2013.01); F16C 33/145 (2013.01); B22F 2998/10 (2013.01); F16C 2202/06 (2013.01); F16C 2204/60 (2013.01); F16C 2220/20 (2013.01); F16C 2370/12 (2013.01);
Abstract
A sintered bearing () of the present invention includes: an inner layer () and an outer layer () each made of sintered metal and formed into a cylindrical shape; and a radial dynamic pressure generating portion (dynamic pressure groovesand) die-formed in an inner peripheral surface of the inner layer (), in which the outer layer () has compressive yield strength higher than compressive yield strength of the inner layer ().