Bearing unit

Details Bearing unit Bearing unit

1996-06-03

1997-07-08

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

384279, 384397, 384398, 384446, 384902, F16C 1702

Patent

active

056453558

ABSTRACT:
A bearing unit in which two oil sintered slide bearings are fitted in a bearing space of non-magnetic bearing housings to be spaced away from each other and a magnetic fluid is interposed between a rotary shaft and the oil sintered slide bearings to rotatably support the rotary shaft. The rotary shaft is made from a material having permeability, and a ring-shaped permanent magnet is fixedly provided between the two oil sintered slide bearings to be spaced therefrom. The magnetic fluid is held between the two oil sintered slide bearings to be circulated.

REFERENCES:
patent: 4754181 (1988-06-01), Mizobuchi et al.
patent: 5161900 (1992-11-01), Bougathou et al.

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