propeller shaft

a shaft that transmits power from an engine to a propeller.

a drive shaft.

Origin of propeller shaft

First recorded in 1830–40

Then he went for a voyage to recruit, and the ship broke her propeller-shaft in a storm and became helpless.

John Thorndyke's Cases |R. Austin Freeman
The brass tube should be about 1/8 inch larger in diameter than the propeller-shaft.

Boys' Book of Model Boats |Raymond Francis Yates
A larger gear (about three times the diameter of the small one) is placed upon the propeller-shaft.

Boys' Book of Model Boats |Raymond Francis Yates
A hole runs lengthwise in the brass, as shown, and a set-screw is used to hold the hub of the propeller-shaft.

Boys' Book of Model Boats |Raymond Francis Yates

Then with a practiced hand he threw the lever operating the friction-clutch on the propeller-shaft.

Darkness and Dawn |George Allan England

propeller shaft

the shaft that transmits power from the gearbox to the differential gear in a motor vehicle or from the engine to the propeller in a ship or aircraft