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:
Jan. 07, 2020
Filed:
Aug. 21, 2017
Globeride, Inc., Tokyo, JP;
Yutaro Abe, Tokyo, JP;
Hiromu Yasuda, Tokyo, JP;
GLOBERIDE, Inc., Tokyo, JP;
Abstract
Provided is a magnetic fluid sealed bearing unit that provides excellent handling ease and workability in incorporating the bearing unit into a rotary shaft portion and exhibits a stable sealing capability. A magnetic fluid sealed bearing unit of the present invention has an inner ring and an outer ring, each made of a magnetic material, a plurality of rolling members interposed between the inner ring and the outer ring, a magnetic seal mechanism arranged between the inner ring and the outer ring and configured to inhibit entry of foreign substances toward the plurality of rolling members, a non-magnetic inner ring-side support member fitted and retained on the inner ring, and a non-magnetic outer ring-side support member fitted and retained on the outer ring.