Propeller shaft bidirectional thrust bearing system

Details Propeller shaft bidirectional thrust bearing system Propeller shaft bidirectional thrust bearing system

1989-07-06

1991-01-22

Peters, Jr., Joseph F.

Marine propulsion

Screw propeller

Shafting

384615, 440 78, B63H 512

Patent

active

049867750

ABSTRACT:
A bidirectional thrust bearing system for the propeller shaft of a marine propulsion system includes a substantially circumferential groove milled into the propeller shaft. A pair of substantially semicircular force transferring members are adapted for placement within the groove, and front and rear bearing collars are placed adjacent the force transferring members. Front and rear needle bearings are provided adjacent the front and rear bearing collars, respectively. A front bearing adapter, interconnected with the walls of the cavity within which the propeller shaft is disposed, transfers forward thrust in the propeller shaft to the gearcase. A rear bearing carrier, held in position by means of a ring nut mounted within the cavity, serves to transfer rearward thrust in the propeller shaft to the gearcase.

REFERENCES:
patent: 3943790 (1976-03-01), Meyer
patent: 3968767 (1976-07-01), Blanchard
patent: 4382639 (1983-05-01), McGuffie
patent: 4767225 (1988-08-01), Iio
patent: 4795382 (1989-01-01), McCormick
patent: 4815996 (1989-03-01), Carr
Truarc.RTM. publication 6-65, "Interlocking Retaining Ring".

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