Marine drive shift shaft mounting system

Marine propulsion – Screw propeller – Shafting

Patent

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Details

B63H 2334

Patent

active

054702640

ABSTRACT:
A device is provided for isolating a shift shaft extending through an exhaust passage of a bell housing in a marine drive system. The device includes an elongated sleeve for receiving the shift shaft therein. The sleeve has a first portion sealably mounted in a first bore extending through the top wall of the exhaust passage and a second portion sealably mounted in a second bore which extends through the bottom wall of the exhaust passage. The elongated sleeve prevents galvanic corrosion and erosion of the aluminum housing and the stainless steel shaft.

REFERENCES:
patent: 2937414 (1960-05-01), Cotchett
patent: 3491555 (1970-01-01), Arndt et al.
patent: 3868833 (1975-03-01), Noe et al.
patent: 4424045 (1984-01-01), Kulischenko et al.
patent: 4430905 (1984-02-01), Bruguera
patent: 4789377 (1988-12-01), Huskins
patent: 4848775 (1989-07-01), Lough
patent: 5052958 (1991-10-01), Entringer et al.

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