Magnetic ball thrust bearing

Details Magnetic ball thrust bearing Magnetic ball thrust bearing

1979-08-22

1981-12-01

Stearns, Richard R.

Cutlery

308139, 308230, F16C 3204, F16C 1910, F16C 1704

Patent

active

043032818

ABSTRACT:
There is disclosed a variety of magnetic ball thrust bearings in use in low friction applications such as anemometers, drills or the like wherein a permanent magnet or other source of magnetomotive force produces a magnetic flux in a closed path which passes through each ball of the ball bearing and attracts the balls and races together. In some embodiments the magnetic flux is also relied upon to produce mutual repulsion between the balls of the bearing thus serving as a magnetic ball cage. In addition to multiple ball and double race bearings, there are disclosed single ball and double socket, fixed ball and single socket, sharpened pivot and socket, and multiple roller; wherein magnetic flux is directed from a rotating shaft into the stationary member through the bearing surfaces and a path of return is provided through a magnetic shunt, a collar bearing, or some combination thereof.

REFERENCES:
patent: 2651550 (1953-09-01), Sharp
patent: 3011842 (1961-12-01), Norris
patent: 3016274 (1962-01-01), Norris
patent: 3663075 (1972-05-01), Kronenberg
patent: 3934950 (1976-01-01), Kuhlman
patent: 4036565 (1977-07-01), Becker
patent: 4043616 (1977-08-01), Zimmer

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