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:
Sep. 08, 2020
Filed:
Mar. 14, 2018
Ntn Corporation, Osaka-shi, Osaka, JP;
Makoto Seki, Iwata, JP;
NTN CORPORATION, Osaka, JP;
Abstract
This bearing device () for vehicle wheels comprises: an inner undercut part () provided in a portion at which an inner rolling surface () formed on the inner side of an inner member () and an inner flange surface () of the inner rolling surface () intersect; an outer undercut part () provided in a portion at which an inner rolling surface () formed on the outer side of the inner member () and an outer flange surface () of the inner rolling surface () intersect; and a vehicle wheel installation flange () provided at a portion adjacent to the inner rolling surface () formed on the outer side of the inner member (), wherein, when the radius of curvature of the inner undercut part () is Ri, and the radius of curvature of the outer undercut part () is Ro, the relationship of Ri<Ro is satisfied.