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:
Aug. 19, 2025
Filed:
May. 27, 2022
Applicant:
Nsk Ltd., Tokyo, JP;
Inventors:
Masahide Natori, Tokyo, JP;
Hiroki Komata, Tokyo, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/62 (2006.01); C21D 1/32 (2006.01); C21D 9/40 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); F16C 33/64 (2006.01);
U.S. Cl.
CPC ...
F16C 33/62 (2013.01); C21D 1/32 (2013.01); C21D 9/40 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); F16C 33/64 (2013.01); C21D 2211/008 (2013.01); F16C 2202/04 (2013.01); F16C 2204/64 (2013.01); F16C 2204/70 (2013.01); F16C 2223/10 (2013.01);
Abstract
A rolling bearing contains a structure having a solid solution carbon amount in a martensitic structure after heat treatment of 0.35 mass % or more and 0.65 mass % or less and a volume ratio of spheroidized carbides having a diameter of 200 nm or more of 4.5% or less.