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:
May. 12, 2026
Filed:
Jan. 26, 2021
Applicant:
Nsk Ltd., Tokyo, JP;
Inventor:
Tomohiro Motoda, Fujisawa, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 35/06 (2006.01); F16C 19/04 (2006.01); F16C 33/58 (2006.01); F16C 35/063 (2006.01); F16C 35/067 (2006.01);
U.S. Cl.
CPC ...
F16C 35/067 (2013.01); F16C 19/04 (2013.01); F16C 33/586 (2013.01); F16C 35/063 (2013.01); F16C 2226/50 (2013.01); F16C 2226/80 (2013.01);
Abstract
A roller bearing includes an outer ring, an inner ring, and plural rolling elements rollably interposed between mutual raceway surfaces of the outer and inner rings, and is used by fitting an outer diameter surface of the outer ring serving as a fitting surface to a housing serving as a mating member or by fitting an inner diameter surface of the inner ring serving as a fitting surface to a shaft serving as the mating member. The fitting surface is provided with at least one protrusion so that a static torque T=Σ(F×r) generated by the protrusion is equal to or greater than a torque Tgenerated by creep.