Magnetic fluid sealed bearing

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9835202
APP PUB NO 20170058955A1
SERIAL NO

15248568

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides a magnetic fluid sealed bearing having a stable sealing performance and allowing easy build-in of a magnetic sealing mechanism into the bearing. A magnetic fluid sealed bearing according to the present invention includes: an inner ring and an outer ring; a plurality of rolling members disposed between the inner ring and the outer ring; a ring-shaped polar plate mounted on an inner circumferential surface of the outer ring such that a gap is produced between the ring-shaped polar plate and an outer circumferential surface of the inner ring; a ring-shaped magnet attached to an axially inner side surface of the ring-shaped polar plate, the ring-shaped magnet forming magnetic circuits on both the outer ring side and the inner ring side; and an inner ring magnetic fluid retained in the magnetic circuit on the inner ring side for sealing the gap.

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Patent Owner(s)

Patent OwnerAddress
GLOBERIDE INCTOKYO JAPAN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higashimoto, Takashi Tokyo, JP 8 47
Ohara, Takeshige Tokyo, JP 17 80

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