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. 07, 2022
Filed:
Apr. 03, 2018
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 5/00 (2006.01); C22C 9/01 (2006.01); F16C 33/14 (2006.01); C22C 1/08 (2006.01); B22F 5/10 (2006.01); B22F 3/11 (2006.01); B22F 3/10 (2006.01); F16C 33/12 (2006.01); C22C 9/10 (2006.01); C22C 1/10 (2006.01); B22F 1/105 (2022.01); B22F 3/12 (2006.01); B22F 3/24 (2006.01); F16C 33/10 (2006.01); B22F 3/02 (2006.01);
U.S. Cl.
CPC ...
B22F 5/00 (2013.01); B22F 1/105 (2022.01); B22F 3/1003 (2013.01); B22F 3/11 (2013.01); B22F 3/12 (2013.01); B22F 3/24 (2013.01); B22F 5/10 (2013.01); B22F 5/106 (2013.01); C22C 1/08 (2013.01); C22C 1/10 (2013.01); C22C 9/01 (2013.01); C22C 9/10 (2013.01); F16C 33/104 (2013.01); F16C 33/128 (2013.01); F16C 33/145 (2013.01); B22F 3/02 (2013.01); B22F 2201/01 (2013.01); B22F 2301/10 (2013.01); B22F 2302/40 (2013.01); B22F 2302/45 (2013.01); F16C 2204/10 (2013.01); F16C 2204/20 (2013.01);
Abstract
Provided is a sintered bearing (), including 3 to 12% by mass of aluminum, 0.05 to 0.5% by mass of phosphorus, and the balance including copper as a main component, and inevitable impurities, the sintered bearing () having a structure in which an aluminum-copper alloy is sintered with a sintering aid added to raw material powder, a pore (db, do) in a surface layer portion of the sintered bearing () being formed smaller than an internal pore (di).