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. 05, 2021
Filed:
Dec. 28, 2018
Ntn Corporation, Osaka, JP;
Masaru Tsuchiya, Shizuoka, JP;
Rino Fukami, Shizuoka, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A roller and cage assembly () includes a roller () and a cage (). The cage has a plurality of annular portions (), a plurality of pillars () that couple the plurality of annular portions, and a pocket () formed between adjacent pillars. The pillars include a protrusion () that protrudes from a side wall surface towards the pocket and contacts the roller, which side wall surface configures the pocket, and within the protrusion, a plane facing the roller in a circumferential direction has a first plane (), and a second plane () connecting to the first plane, the first plane being a flat plane, and the second plane being a curved plane, or a flat plane inclined against the first plane.