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. 19, 2026
Filed:
Oct. 07, 2022
Nippon Thompson Co., Ltd., Tokyo, JP;
Satoshi Sasaki, Mino, JP;
NIPPON THOMPSON CO., LTD., Tokyo, JP;
Abstract
A bearing includes: a plurality of cylindrical rollers arranged in a circumferential direction; and a separator adjacent to the cylindrical rollers in the circumferential direction. The separator has a cylindrical shape. An outer peripheral surface of the separator has an annular groove defined by a groove wall surface, a shape of the groove wall surface in a cross section including a center axis being an arc shape. The separator is oriented such that the groove wall surface contacts outer peripheral surfaces of the cylindrical rollers adjacent to separator in the circumferential direction. The groove wall surface has a curvature radius larger than a curvature radius of the outer peripheral surface of each cylindrical roller.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile