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. 25, 2020
Filed:
Sep. 05, 2017
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/76 (2006.01); F16C 33/78 (2006.01);
U.S. Cl.
CPC ...
F16C 33/7823 (2013.01); F16C 33/7843 (2013.01); F16C 2361/65 (2013.01);
Abstract
A sealed bearing includes an inner race; and seal members each including a seal lip made of rubber. Each seal lip includes a plurality of protrusions circumferentially spaced apart from each other, and kept in sliding contact with the inner race with fluid lubrication condition generated between the protrusions and the inner race. Each protrusion has a circular arc-shaped cross section along the circumferential direction, and the circular arc-shaped cross section has a radius of 0.4 mm or more and less than 9.0 mm.