Thrust bearing system for counter-rotating propeller shafts, par

Details Thrust bearing system for counter-rotating propeller shafts, par Thrust bearing system for counter-rotating propeller shafts, par

1990-01-25

1991-02-19

Hannon, Thomas R.

Bearings

Rotary bearing

Water lubricated propellor shaft or well shaft

384420, 415 69, 416128, 440 81, F16C 300, B63H 2300, B64C 1148, B64D 3506

Patent

active

049938487

ABSTRACT:
Two propeller shafts are disposed coaxially one within another. A collar of the inner propeller shaft grips into the hollow outer propeller and supports the inner shaft axially over axial friction bearing elements. The axial friction bearing elements are surrounded by a shaft connecting piece, which is divided in the axial direction and at least one half of which can be removed radially, in order to create access to the axial friction bearing elements. By way of the axial friction bearing elements, axial forces of the inner propeller shaft reach the hollow outer propeller shaft and, from the latter, by way of further axial friction bearing elements, further reach a bearing housing, which is preferably also divided in the longitudinal direction.

REFERENCES:
patent: 2789021 (1957-04-01), Pedersen
patent: 3167361 (1965-01-01), Snapp et al.
patent: 3469556 (1969-09-01), Campbell et al.
patent: 3515449 (1970-06-01), Harbage, Jr.
patent: 4426049 (1984-01-01), Stewart
patent: 4642059 (1987-02-01), Nohara
Hansa, 109 Annual, No. 14, pp. 1279-1286, by H. Meier-Peter, "Maschinenbauliche Gesichtspunkte bei gegenlaufigen Antriebssystemen fur seegehende Handelsschiffe", 1972.

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