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:
Nov. 11, 2025
Filed:
Sep. 13, 2022
Kyodo Yushi Co., Ltd., Fujisawa, JP;
Nsk Ltd., Tokyo, JP;
Kazuki Isa, Fujisawa, JP;
Yuki Takeyama, Shanghai, CN;
Masatoshi Ijima, Fujisawa, JP;
Suguru Sugawara, Fujisawa, JP;
Hiroaki Ishikawa, Fujisawa, JP;
KYODO YUSHI CO., LTD., Kanagawa, JP;
NSK LTD., Tokyo, JP;
Abstract
A grease composition for vehicular hub unit bearings is provided, in which a base oil is a synthetic hydrocarbon oil having a kinematic viscosity at 40° C. of 25-50 mm/s, a thickener is an alicyclic aliphatic diurea compound, based on a total mass of the composition, 0.1-5% by mass of a carboxylic acid-based corrosion inhibitor, 0.1-5% by mass of a carboxylic acid salt-based corrosion inhibitor, and 0.1-3% by mass of an amine salt of a fatty acid are contained, and a worked penetration is 220-270.