Hub assembly for marine propeller

A propeller assembly for mounting on a rotatable propeller shaft of a watercraft, comprising:

• a hub structure extending along a longitudinal axis, the hub structure including an outer surface having a plurality of circumferentially spaced blades projecting therefrom and an inner surface having a longitudinally extending key projecting therefrom;
• an adaptor having an inner surface defining a passageway for receiving the propeller shaft therethrough and an outer surface having a longitudinally extending key extending therealong;
• and
• a tubular bushing having first and second ends, the first end of the bushing including a first keyway for receiving the key of the adaptor in a mating relationship and the second end of the busing including a second keyway for receiving the key of the hub structure in a mating relationship;
• wherein each of the first and second keyway recesses having an open end and a closed end.

A propeller assembly for mounting on a rotatable propeller shaft of a watercraft, comprising:

• a central hub defining an inner surface having a plurality of circumferentially spaced keys therealong;
• an adaptor having an inner surface defining a passageway for receiving the propeller shaft therethrough an outer surface having a plurality of circumferentially spaced keys therealong;
• and
• a tubular bushing having first end including a plurality of circumferentially spaced recesses therein which define keyways for receiving corresponding keys of the adaptor in a mating relationship and a second opposite end including a plurality of circumferentially spaced recesses therein which define keyways for receiving corresponding keys of the central hub in a mating relationship;
• wherein each of the first and second keyway recesses having an open end and a closed end.

A propeller assembly for mounting on a rotatable propeller shaft of a watercraft, comprising:

• a hub structure extending along a longitudinal axis, the hub structure including an outer surface having a plurality of circumferentially spaced blades projecting therefrom and an inner surface having a longitudinally extending key projecting therefrom;
• an adaptor having an inner surface defining a passageway for receiving the propeller shaft therethrough and an outer surface having a longitudinally extending key extending therealong, the key of the adaptor has a first narrow end and a second wider end;
• and
• a tubular bushing having a first keyway for receiving the key of the adaptor in a mating relationship and a second keyway for receiving the key of the hub structure in a mating relationship.

A propeller assembly for mounting on a rotatable propeller shaft of a watercraft, comprising:

• a hub structure extending along a longitudinal axis, the hub structure including an outer surface having a plurality of circumferentially spaced blades projecting therefrom and an inner surface having a longitudinally extending key projecting therefrom, the key of the hub structure has a first narrow end and a second wider end;
• an adaptor having an inner surface defining a passageway for receiving the propeller shaft therethrough and. an outer surface having a longitudinally extending key extending therealong;
• and
• a tubular bushing having a first keyway for receiving the key of the adaptor in a mating relationship and a second keyway for receiving the key of the hub structure in a mating relationship.

A propeller assembly for mounting on a rotatable propeller shaft of a watercraft, comprising:

• a hub structure extending along a longitudinal axis, the hub structure including an outer surface having a plurality of circumferentially spaced blades projecting therefrom and an inner surface having a longitudinally extending key projecting therefrom;
• an adaptor having an inner surface defining a passageway for receiving the propeller shaft therethrough and an outer surface having a longitudinally extending key extending therealong, the adaptor including an enlarged head extending radially from a first end thereof, the enlarged head engageable with inner surface of the hub structure;
• and
• a tubular bushing having a first keyway for receiving the key of the adaptor in a mating relationship and a second keyway for receiving the key of the hub structure in a mating relationship.

A propeller assembly for mounting on a rotatable shaft of a watercraft, comprising:

• a central hub defining an inner surface having a plurality of circumferentially spaced keys therealong;
• an adaptor having an inner surface defining a passageway for receiving the propeller shaft therethrough and an outer surface having a plurality of circumferentially spaced keys therealong;
• and
• a tubular bushing having first end including a plurality of circumferentially spaced recesses therein which define keyways for receiving corresponding keys of the adaptor in a mating relationship and a second opposite end including a plurality of circumferentially spaced recesses therein which define keyways for receiving corresponding keys of the central hub in a mating relationship;
• wherein each of the keys of the central hub has a first narrow end and a second wider end and wherein each of the keys of the adaptor has a first narrow end and a second wider end.