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:
Apr. 28, 2020
Filed:
Mar. 20, 2019
Jtekt Corporation, Osaka-shi, Osaka, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
A cage and roller assembly includes rollers to be brought into rolling contact with a raceway surface provided on the outer periphery of a shaft, and an annular cage that retains the rollers. Lubricating oil is supplied through an oil supply hole that is provided inside the shaft and is open at an axial center region of the raceway surface. The cage includes annular portions having guide surfaces that are brought into contact with an inner peripheral surface of an outer member that is brought into rolling contact with the rollers, and cage bars that couple the annular portions together and are arranged with intervals in a circumferential direction. Clearances formed between the cage bars and the rollers housed in the pockets are larger in axial center portions of the cage bars between axial ends of the cage bars than at the axial ends of the cage bars.