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:
Dec. 04, 2018
Filed:
Jul. 19, 2017
Applicant:
Jtekt Corporation, Osaka-shi, Osaka, JP;
Inventors:
Daisuke Okamoto, Osaka, JP;
Takuya Toda, Kashiwara, JP;
Assignee:
JTEKT CORPORATION, Osaka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 19/30 (2006.01); F16C 19/50 (2006.01); F16C 19/22 (2006.01); F16C 33/38 (2006.01); E21B 4/00 (2006.01); F16C 19/18 (2006.01); F16C 33/66 (2006.01); F16C 19/16 (2006.01); F16C 19/54 (2006.01);
U.S. Cl.
CPC ...
F16C 19/305 (2013.01); F16C 19/163 (2013.01); F16C 19/181 (2013.01); F16C 19/225 (2013.01); F16C 19/502 (2013.01); F16C 19/541 (2013.01); F16C 33/664 (2013.01); F16C 33/6659 (2013.01); E21B 4/003 (2013.01); F16C 2300/02 (2013.01); F16C 2300/14 (2013.01); F16C 2352/00 (2013.01);
Abstract
Rolling bearings are stacked with their center lines extending in a vertical direction. Each of the rolling bearings has an inner ring, an outer ring, a plurality of balls, and an annular cage. Each of the rolling bearings has a structure that induces, upon rotation, an action that causes lubricating oil to flow upward along the outer ring in the annular space. The cage has an annular portion provided adjacently below the balls to prevent air from moving to the outer ring side from the inner ring side.