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:
Oct. 01, 2019
Filed:
Jul. 10, 2017
The Timken Company, North Canton, OH (US);
Xiaolan Ai, Massillon, OH (US);
The Timken Company, North Canton, OH (US);
Abstract
A roller bearing () defines a bearing axis () and a radial plane () oriented parallel with the bearing axis. The roller bearing () includes an inner ring () having an inner raceway () and an inner flange () extending from the inner raceway. The inner flange () includes an inner guide surface (). The roller bearing () also includes a plurality of rollers () in rolling engagement with the inner raceway () about the bearing axis (). Each roller () includes a first end surface () in engagement with the inner guide surface () of the inner flange () as the plurality of rollers () move relative to the inner ring (). The first end surfaces () of each roller () define a curvature such that a ratio of a first principal effective curvature (Rx) radius in a plane perpendicular to the radial plane () and a second principal curvature radius (Ry) in the radial plane () is no less than 3.0.