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. 05, 2019
Filed:
Mar. 16, 2017
Jtekt Corporation, Osaka-shi, Osaka, JP;
Mikio Nozaki, Kashihara, JP;
Yoshimichi Higashiyama, Kashihara, JP;
JTEKT CORPORATION, Osaka-shi, JP;
Abstract
A bearing device includes a bearing portion that includes an inner ring, an outer ring, a plurality of rolling elements that are interposed between the inner ring and the outer ring, and a cage that holds the plurality of rolling elements, one of the inner ring and the outer ring being a rotational ring, and another of the inner ring and the outer ring being a fixed ring; and an oil supply unit that is provided adjacent to the bearing portion in an axial direction. The cage includes a guide portion that is configured to be in sliding contact with a part of the fixed ring via lubricating oil. The oil supply unit includes a vibration sensor configured to detect a vibration of the fixed ring, and a pump configured to supply the lubricating oil to the bearing portion.