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:
May. 10, 2022
Filed:
Mar. 08, 2018
Ntn Corporation, Osaka, JP;
Masazumi Kobayashi, Shizuoka, JP;
Tomoshige Kobayashi, Shizuoka, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A rear-wheel drive shaft () includes a fixed type constant velocity universal joint (), a plunging type constant velocity universal joint (), and an intermediate shaft () coupling both the constant velocity universal joints to each other. A ratio (PCD(f)/D(f)) of a pitch circle diameter (PCD(f)) of balls () of the fixed type constant velocity universal joint () to a diameter (D(f)) of each of the balls () is set from 3.70 to 3.87. A ratio (PCD(s)/D(s)) of a pitch circle diameter (PCD(s)) of balls () of the plunging type constant velocity universal joint () to a diameter (D(s)) of each of the balls () is set from 3.3 to 3.6.