Ceramic step bearing in a centrifugal pump

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure

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Details

417365, F04B 1700, F04B 3504

Patent

active

048743003

ABSTRACT:
A step bearing with spherical gliding surfaces having a stationary mounted ceramic ball mounted on a strut, on which a magnetic rotor with a concave cap is rotating under working conditions. During operation the rotor with the cap is pressed by magnetic thrust in the direction toward the strut, while a second annular bearing member of the rotor prevents axial movement of the cap when axial forces in the direction opposite to the direction of the magnetic forces become higher than the magnetic forces.

REFERENCES:
patent: 3803432 (1974-04-01), Laing
patent: 4072446 (1978-02-01), Walker
patent: 4541786 (1985-09-01), McLean
patent: 4614887 (1986-09-01), Ahner et al.
patent: 4629116 (1986-12-01), Laing et al.
patent: 4730989 (1988-03-01), Laing
patent: 4738436 (1988-04-01), Loggers

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