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:
Jan. 26, 2016
Filed:
Sep. 22, 2010
Tomoshige Kobayashi, Iwata, JP;
Minoru Ishijima, Iwata, JP;
Kisao Yamazaki, Iwata, JP;
Aiko Ishikawa, Iwata, JP;
Tomoshige Kobayashi, Iwata, JP;
Minoru Ishijima, Iwata, JP;
Kisao Yamazaki, Iwata, JP;
Aiko Ishikawa, Iwata, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A fixed type constant velocity universal joint includes an outer joint member, an inner joint member, a plurality of balls for transmitting torque provided between track grooves of the outer joint member and track grooves of the inner joint member, and a cage for retaining the balls. Grease is enclosed in the fixed type constant velocity universal joint which includes a thickener and a lubricant component which is constituted by base oil. The grease contains 90% by mass or more of paraffinic mineral oil with respect to the total mass of the lubricant component of the grease, and 3 to 8% by mass of the thickener with respect to the total mass of the components of the grease.