Marine propeller with breakaway hub

Details Marine propeller with breakaway hub Marine propeller with breakaway hub

1991-12-13

1993-04-13

Basinger, Sherman

Marine propulsion

Screw propeller

440 83, 416134R, B63H 120

Patent

active

052016790

ABSTRACT:
A marine propeller with break away hub has an insert cavity with pentagonal cross section extending coaxially with the axis of rotation of the propeller, along at least a portion of the length of the propeller. A resilient insert corresponding to the insert cavity is positioned in the insert cavity. The insert is sized for slip fit with the cavity and is adapted for connection with a propeller drive shaft. Preferably, the insert has a cylindrical aperture with a series of grooves disposed circumferentially thereabout extending coaxially through the insert and the insert is connected with the propeller shaft through a shaft sleeve. The shaft sleeve corresponds to the aperture in the insert, has a cylindrical outer surface with a series of teeth disposed circumferentially thereabout, and has a mounting aperture extending coaxially through the shaft sleeve. The shaft sleeve is sized for hand force slip fit engagement with the insert. The mounting aperture is adapted for mounting the marine propeller on the propeller shaft.

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