jackshaft
/ˈdʒækˌʃæft/
noun
- A rotating shaft that transmits power from one part of a machine to another, often used in engines, vehicles, or industrial equipment.
- The jackshaft connects the motor to the conveyor belt in the factory.
- In a go-kart, the jackshaft transfers power from the engine to the rear axle.
- He replaced the worn bearings on the jackshaft to reduce vibration.