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. 15, 2022
Filed:
Sep. 12, 2018
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Yoshinori Ito, Aichi, JP;
Yousuke Sugai, Aichi, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/10 (2006.01); C22C 38/00 (2006.01); F16C 33/12 (2006.01); C22C 38/16 (2006.01); F16C 33/14 (2006.01); B22F 5/10 (2006.01); B22F 1/00 (2022.01); B22F 1/02 (2006.01); F16C 17/02 (2006.01); B22F 3/10 (2006.01);
U.S. Cl.
CPC ...
F16C 33/104 (2013.01); B22F 1/0059 (2013.01); B22F 1/025 (2013.01); B22F 5/10 (2013.01); C22C 38/00 (2013.01); C22C 38/008 (2013.01); C22C 38/16 (2013.01); F16C 33/121 (2013.01); F16C 33/128 (2013.01); F16C 33/145 (2013.01); B22F 3/10 (2013.01); B22F 2999/00 (2013.01); F16C 17/02 (2013.01); F16C 2204/10 (2013.01); F16C 2204/60 (2013.01);
Abstract
There is provided a sintered bearing having high rotational accuracy and low rotational fluctuation. This bearing includes a bearing surface (), and is made of a sintered compact (″) produced by molding and sintering a raw material powder () containing a partially diffusion-alloyed powder () in which a copper powder () is partially diffused on a surface of an iron powder (), a tin powder () as a low-melting-point metal powder, and a graphite powder as a solid lubricant powder. The sintered bearing has a radial crushing strength greater than or equal to 300 MPa.