B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
115/2
B63H 20/00 (2006.01) F02B 61/04 (2006.01)
Patent
CA 1051721
HIGH THRUST TROLLING MOTOR 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 including a cup-shaped end bell housing. A motor shaft hub member telescopes into the housing and clamps against an annular gear with clamping bolts passing therethrough and threaded into the hub member. Planetary gears carried by a cage engage the annulus gear. A propeller shaft is fixed to the cage and journaled in a 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 hub member to receive the motor shaft. The shaft openings in the gear housing and in the hub member have shaft bearings in spherical seats and rotating seals. The subassembly drops onto the motor shaft with the gear housing 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. The propeller unit includes a hub which telescopes over the hub portion of the housing which is of the same diameter as the housing to form an extension of the housing to minimize weed entanglement. A pair of large diameter propeller blades project from the hub and are swept back in the direction of rotation.
259669
Brunswick Corporation
Na
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