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jackshaft

jackshaft

9.3
A metal rod in a machine that connects parts and moves power between them
  • noun
  • /ˈdʒækˌʃæft/
  • Specialized
translation icon : eje de transmisión
  • A broken jackshaft can cause the entire machine to stop working.

Examples

  • The engineer inspected the jackshaft for signs of wear and tear.

  • The jackshaft connects the engine to the propeller in the boat's transom.

  • The mechanic replaced the worn jackshaft in the engine.

  • The jackshaft is crucial for the machine's operation.

  • Engineers often inspect the jackshaft for wear and tear.

  • In this type of machinery, the jackshaft plays a crucial role by transmitting power efficiently from the motor to the drive system.

  • Engineers designed a system where the jackshaft helps coordinate the motion between the gears and the wheels.

Synonyms

crankshaft
vsjackshaft
  • Specialized
3 6.8

A long metal part inside an engine that turns the up and down movement of pistons into a turning motion

transmits motion between parts without converting motion types
spindle
vsjackshaft
  • Specialized
3 6.7

A central rod that turns and supports other machine parts

passes motion between parts rather than mainly acting as an axis
pushrod
vsjackshaft
  • Specialized
1 7.5

A metal rod in an engine that moves parts to open valves

moves power between parts typically through rotation instead of straight pushes
rotating shaft
vsjackshaft
  • Specialized
4.4

A rod that turns to move parts in a machine

transmits power between parts whether by rotation or other means

Surface Forms

jackshaft singular
jackshafts plural

Morphology

jackshaft = jack + shaft (transparent) = jack + shaft

The meaning is directly derived from 'jack' + 'shaft': a shaft that functions as an auxiliary or intermediate mechanical shaft.

Etymology

Jackshaft combines jack, a word for a small 'helper' machine like a car jack, and shaft, a long rod that 'turns'. So a jackshaft is a helper rod that passes power or motion between parts of a machine.