Abrasion resistant bearing seal

Details Abrasion resistant bearing seal Abrasion resistant bearing seal

1978-05-05

1979-12-11

Butler, Douglas C.

Cutlery

308 361, F16C 1900

Patent

active

041780450

ABSTRACT:
A bearing seal for cutters of rotary drill bits and big hole industrial cutters or tunneling machine cutters which comprises generally one or more steel rings in sealing relationship with the cutters and their journals, the relationship being maintained during the substantially continuous radial off-setting movement or angular cocking of the cutter relative to the journal in the normal operation of such devices, due to the clearance fit of the cutter on the journal.

REFERENCES:
patent: 3251634 (1966-05-01), Dareing
patent: 3381968 (1968-05-01), Neilson
patent: 3449024 (1969-06-01), Lichte
patent: 4102419 (1978-07-01), Klima

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