Self-contained low power fluid bearing and bearing seal

Details Self-contained low power fluid bearing and bearing seal Self-contained low power fluid bearing and bearing seal

1992-04-10

1992-11-10

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

277 80, F16C 3374, F16J 1540

Patent

active

051619008

ABSTRACT:
A bearing using magnetic fluid for lubrication is provided with a magnetic seal circuit to retain the magnetic fluid in the baring. The magnetic seal circuit comprises two annular ring magnets surrounding a shaft and placed on opposite sides of the bearing. The two ring magnets are magnetically joined by a shunt. The shunt controls stray flux and permits the disposition of the magnet at a small distance from the shaft, thus concentrating the flux in the magnetic seal gap.

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patent: 5100159 (1992-03-01), Bras et al.

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