Anodized seal nose for damper

Details Anodized seal nose for damper Anodized seal nose for damper

1980-03-14

1981-10-06

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277DIG6, 277153, 277237R, 74574, F16J 1532, F16F 1512

Patent

active

042931363

ABSTRACT:
A hub construction for a torsional vibration damper. The hub is formed of aluminum to obtain the known damper performance advantages of a lower moment of inertia. The hub is coated with a Teflon anodized layer to (1) protect it from oxidation, to (2) prevent the formation of aluminum oxide particles at the elastomer-hub interface. The coating is of a surface roughness of 60-70 micro inches, being a roughness in excess of that recommended by seal manufacturers. Unexpectedly, the coating does not injure a seal used with the damper, thus yielding a third advantage.

REFERENCES:
patent: 1850683 (1932-03-01), Merrill
patent: 2724377 (1955-11-01), Nallinger
patent: 2807511 (1957-09-01), Fleming
patent: 2986955 (1961-06-01), Herbenar
patent: 3545770 (1970-12-01), Wheelock
patent: 3917286 (1975-11-01), Loyd
patent: 4178811 (1979-12-01), Shepherd

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