Combined shift rod bushing and gear case seal for marine propuls

Details Combined shift rod bushing and gear case seal for marine propuls Combined shift rod bushing and gear case seal for marine propuls

1988-04-21

1989-09-05

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

384 16, 384152, 384904, F16C 3372

Patent

active

048632902

ABSTRACT:
A marine propulsion lower unit including a gear case supporting a propeller shaft adapted to carry a propeller, which gear case has an upper surface including therein a cylindrical well defined by cylindrical peripheral wall and a bottom wall having therein an axial bore, a combined shift rod bushing and gear case seal assembly comprising a hub having an axis and axially spaced first and second ends, which hub also includes therein an axial bore extending from the first end, and which hub also includes therein a counter bore extending from the second end, and communicating with the axial bore in coaxial relation thereto, a flange extending from the hub and received in the well in the gear case, a pair of attachment arms extending from the hub in transverse radially outward relation to the axis of the hub and fixedly connected to the gear case, a plug member received in the counter bore and having an axial bore communicating with the axial bore in the hub, a shift rod extending through the axial bore in the plug member and through the axial bore in the hub, a first seal between the flange and the gear case, and a second seal between the plug member and each of the hub and the shift rod.

REFERENCES:
patent: 2635931 (1953-04-01), May
patent: 2973997 (1961-03-01), Kirkland
patent: 3776611 (1973-12-01), Jentsch
patent: 3791495 (1974-02-01), Keijzer et al.

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