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. 02, 2018
Filed:
Jul. 26, 2017
Jtekt Corporation, Osaka-shi, Osaka, JP;
Yuya Inoue, Nagaokakyo, JP;
Tsuyoshi Okumura, Yamatokoriyama, JP;
Teruyuki Wakisaka, Nagoya, JP;
Yoshiyuki Ina, Osaka, JP;
Toshihiro Hakata, Kashiwara, JP;
Takaaki Onizuka, Kashiwara, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
A rolling device for a vehicle includes an inner raceway member including first and second inner raceways; an outer raceway member including first and second outer raceways; first rolling elements disposed rollably between the first inner raceway and the first outer raceway and second rolling elements disposed rollably between the second inner raceway and the second outer raceway; and grease disposed on raceway surfaces of the first inner raceway, the first outer raceway, the second inner raceway, and the second outer raceway and rolling surfaces of the first rolling elements and the second rolling elements. The grease includes a base oil, a thickener, and additives. The grease includes a synthetic oil as the base oil. A kinematic viscosity of the base oil at 40° C. is 20 mm/s to 50 mm/s. The additives include a phosphorus compound, a calcium compound, and a hydrocarbon wax.