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. 31, 2016
Filed:
Apr. 11, 2013
Tomohisa Uozumi, Shizuoka, JP;
Tomoyoshi Izutsu, Shizuoka, JP;
Tomohisa Uozumi, Shizuoka, JP;
Tomoyoshi Izutsu, Shizuoka, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A rolling bearing includes inner and outer races rotatable relative to each other, a plurality of rolling elements interposed between the inner and outer races, and a retainer arranged between the inner and outer races for retaining the plurality of rolling elements equiangularly. Flange portions are formed on a radially inner side and a radially outer side of an axial end portion of the retainer so as to extend radially. Recessed grooves are formed in a region of the inner race and a region of the outer race corresponding to the respective flange portions so as to form labyrinths together with the flange portions. Inner side surfaces of the flange portions and axial end surfaces of the recessed grooves, which are opposed to the inner side surfaces of the flange portions, are inclined radially so as to generate a flow of lubricant.