B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
74/118, 115/2
B63H 23/02 (2006.01) B63H 20/00 (2006.01)
Patent
CA 1056651
Abstract of the Disclosure An electric trolling motor includes a lower unit with a cylindrical motor housing closed at the aft end by a planetary gear-reduction subassembly. A motor shaft supporting hub member telescopes into the housing and has clamped thereagainst an annular gear with clamping bolts passing therethrough and threaded into the hub member. Planetary gears carried by a cage engage the annular gear. A propeller shaft is fixed to the cage and journaled in a second hub portion of the housing. A sun gear meshes with the planetary gears and has an opening aligned with an opening in a hub portion of the first hub member to receive the motor shaft. The shaft openings in the first and second hub members have shaft bearings in spherical seats and rotating seals. The spherical seats provide proper alignment of the shafts. The planetary gear subassembly drops onto the motor shaft with both hub members abutting the motor housing and secured thereto by bolts. The motor shaft and sun gear have complementing interlocking surfaces to establish rotatable interconnection. The opposing surfaces of the sun gear and the cage have thrust bearing surfaces with the motor shaft holding the sun gear in cage abutting relation. -0-
259723
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