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:
Aug. 05, 2014
Filed:
Sep. 04, 2012
Akihiro Kimura, Kyoto, JP;
Teiichi Hirono, Kyoto, JP;
Kunio Sakurada, Kyoto, JP;
Kyoko Horise, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Kazuhiro Sato, Kyoto, JP;
Yoichi Sekii, Kyoto, JP;
Akihiro Kimura, Kyoto, JP;
Teiichi Hirono, Kyoto, JP;
Kunio Sakurada, Kyoto, JP;
Kyoko Horise, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Kazuhiro Sato, Kyoto, JP;
Yoichi Sekii, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A bearing apparatus includes a stationary shaft, a first annular member, and a rotating member. The rotating member includes a first inner circumferential surface arranged opposite to the outer circumferential surface of the stationary shaft, and a second inner circumferential surface arranged opposite to an outer circumferential surface of the first annular member. A lubricating oil is arranged in a gap between a surface of a stationary member and the rotating member. On an upper side of an upper surface of the lubricating oil, the first annular member and the rotating member are arranged radially opposite to each other with a slight gap defined therebetween, so that a labyrinth seal is defined. The labyrinth seal and a fixing range over which the stationary shaft and the first annular member are fixed to each other are arranged to overlap with each other in a radial direction.