Pre-seal for magnetic liquid seal for an anti-friction bearing

Details Pre-seal for magnetic liquid seal for an anti-friction bearing Pre-seal for magnetic liquid seal for an anti-friction bearing

1990-04-05

1991-01-15

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384446, 277 80, F16C 3382

Patent

active

049849085

ABSTRACT:
A magnetic liquid seal for an anti-friction bearing, the seal comprising an annular magnet and annular pole rings with respective supplies of magnetizable liquid radially between the pole rings and the inner ring. A pre-seal element with a lip extending toward the inner ring is supported on that axial side of the magnet that is toward the rolling element balls. A notch is defined in the inner race radially generally centered beneath the lip. The opposite axial side surfaces of the notch are obliquely outwardly inclined in the radially outward direction.

REFERENCES:
patent: 4692826 (1987-09-01), Raj et al.
patent: 4761082 (1988-08-01), Gabelli

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