Marine propulsion device including thrust bushing anode

Details Marine propulsion device including thrust bushing anode Marine propulsion device including thrust bushing anode

1982-04-05

1984-12-04

Blix, Trygve M.

Marine propulsion

Screw propeller

440 78, 440900, 416 93A, 416134R, 416146R, 416247A, B63H 114

Patent

active

044861818

ABSTRACT:
A marine propulsion device is provided including a lower unit having a gearcase and a propeller shaft housing located in the gearcase and supporting a propeller shaft for rotation. A propeller is mounted on the propeller shaft rearward portion for common rotation with the propeller shaft. A thrust bushing is carried by the propeller shaft and for transmitting forward thrust from the propeller to the propeller shaft. An annular sacrificial anode surrounds the propeller shaft and is positioned between the thrust bushing and the propeller shaft bearing housing for providing cathodic protection for the rearward end of the gearcase and the propeller shaft bearing housing.

REFERENCES:
patent: 3330751 (1967-07-01), Warner
patent: 4146448 (1979-03-01), Nakano et al.
patent: 4236872 (1980-12-01), Metcalf

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