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. 30, 2020
Filed:
Mar. 07, 2016
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/14 (2006.01); B22F 3/24 (2006.01); B22F 5/10 (2006.01); F16C 33/10 (2006.01); F16C 33/12 (2006.01); C22C 5/08 (2006.01); F16C 17/02 (2006.01); B22F 1/00 (2006.01);
U.S. Cl.
CPC ...
F16C 33/145 (2013.01); B22F 3/24 (2013.01); B22F 5/106 (2013.01); F16C 33/104 (2013.01); F16C 33/128 (2013.01); B22F 1/0055 (2013.01); B22F 2301/10 (2013.01); B22F 2301/35 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C22C 5/08 (2013.01); F16C 17/02 (2013.01);
Abstract
A sintered bearing includes a cylindrical portion, one-side increased-diameter portion and another-side increased-diameter portion. A metal structure of the another-side increased-diameter portion has a higher density than a metal structure of a core portion of the sintered compact. A metal structure of the cylindrical portion has an expansion along a direction of ironing by the sizing core and a higher density than the metal structure of the another-side increased-diameter portion. A metal structure of the one-side increased-diameter portion has an expansion along a direction of ironing by the sizing core and a higher density than the metal structure of the cylindrical portion.