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:
Aug. 03, 2021
Filed:
Mar. 23, 2017
Ntn Corporation, Osaka, JP;
Tomoki Matsushita, Shizuoka, JP;
NTN CORPORATION, Osaka, JP;
Abstract
Provided is a tapered roller bearing () which is to be used for a pilot portion and an idler portion of a synchronous mesh-type transmission in which a component corresponding to a bearing outer ring () is formed of a gear (), wherein a ratio L/Dw of a roller length (L) of a tapered roller () serving as a rolling element to a roller diameter (Dw) is set to 1.7 or more, wherein a rolling surface () of the tapered roller () includes a straight portion () in a center portion of the rolling surface () in an axial direction and crowning portions () extending from the straight portion () to both end portions, and wherein the crowning portions () are each formed of logarithmic crowning.