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:
Dec. 29, 2015
Filed:
Dec. 13, 2013
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Akimi Furukoshi, Kitasaku-gun, JP;
MINEBEA CO., LTD., Kitasaku-gun, JP;
Abstract
The sealing performance against positive and negative pressures is increased and sufficient air tightness against pressure fluctuations is maintained in a rolling bearing having a sealing function. Seal members are provided on both ends of a bearing. The seal members include a metal core and an elastic body, and are fixed to an outer ring. Outside and inside lip parts of the seal members contact an outer peripheral surface of an inner ring. When a positive pressure acts on the outside of the seal member, the outside lip part is pressed to the outer peripheral surface of the inner ring, and the air tightness is maintained. When a negative pressure acts, the inside lip part is pressed to the outer peripheral surface of the inner ring by the differential pressure between the outside and inside of the rolling bearing, and the air tightness is also maintained.