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. 22, 2019
Filed:
Sep. 25, 2018
Rolls-royce Corporation, Indianapolis, IN (US);
David C. Farnum, Indianapolis, IN (US);
Andrew V. Schwendenmann, Avon, IN (US);
Jared I. Taketa, Indianapolis, IN (US);
Rolls-Royce Corporation, Indianapolis, IN (US);
Abstract
An inner ring for a bearing comprises a ring body including outer and inner surfaces each extending in a circumferential direction about a longitudinal axis. The outer surface is disposed radially outside the inner surface and includes (a) a raceway for supporting circumferentially arranged rolling elements, (b) a forward separator land, and (c) an aft separator land, where the raceway is axially situated between the forward and aft separator lands. The inner surface includes an annular groove for containing a lubricant under centrifugal forces. Flow passages for distributing the lubricant extend through the ring body from the inner surface to the outer surface, including a set of first flow passages extending from the annular groove to the raceway, a set of second flow passages extending from the annular groove to the forward separator land, and a set of third flow passages extending from the annular groove to the aft separator land.