Bearing seal with encoder

Details Bearing seal with encoder Bearing seal with encoder

1993-12-10

1995-10-17

DePumpo, Daniel G.

Bearings

Rotary bearing

Antifriction bearing

277 2, 277 35, 277152, F16J 1532, F16C 3378

Patent

active

054584205

ABSTRACT:
A seal for a bearing having a rotating outer race and fixed inner race, closes the annular space between the two races and further excites a sensor which delivers a signal that reflects the angular velocity of the outer race. The seal has outer and inner cases and elastomeric sealing elements bonded to the cases. The outer race fits into a bore that opens out of the outer race and its seal element contacts the inner case along the inner race. The inner case fits over the inner race and its seal element is directed outwardly toward the outer case and outer race. In addition, the seal has an encoder ring which is secured to the outer case and presents a radial wall containing disruptions which excite the sensor when the disruptions move past the sensor as the encoder ring rotates with the outer race.

REFERENCES:
patent: 3500091 (1970-03-01), Jones
patent: 4161120 (1979-07-01), Cloarec
patent: 4850722 (1989-07-01), Bayer
patent: 4884901 (1989-12-01), Harsdorff
patent: 4962936 (1990-10-01), Matsushima
patent: 5002287 (1991-03-01), Eskilsson
patent: 5022659 (1991-06-01), Otto
patent: 5085519 (1992-02-01), Dougherty
patent: 5139425 (1992-08-01), Daviet et al.
patent: 5195830 (1993-03-01), Caillault et al.

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