Magnetic fluid sealed bearing and fishing reel having the magnetic fluid sealed bearing

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United States of America Patent

PATENT NO 9797451
APP PUB NO 20150122930A1
SERIAL NO

14534412

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a magnetic fluid sealed bearing with which torque can be reduced without impairing a water and dust proof effect. A magnetic fluid sealed bearing according to the present disclosure includes a magnetic fluid retained by a ring-shaped magnet in an opening between an inner ring and an outer ring to seal a plurality of rolling members. The magnet is magnetized such that their magnetic poles point to an axial direction. The bearing further includes a ring-shaped outer polar plate and a ring-shaped inner polar plate sandwiching the ring-shaped magnet therebetween, one side of the polar plates being fixed to one of the inner ring and the outer ring, and the other side of the polar plates facing a clearance.

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Patent Owner(s)

Patent OwnerAddress
GLOBERIDE INCTOKYO JAPAN

International Classification(s)

Inventor(s)

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

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