countershaft

Secondary transmission shaft

A countershaft is an intermediate shaft in a mechanical system that transmits power between the main driving shaft and the driven components.

In a manual transmission, the countershaft carries gears that mesh with those on the main shaft, enabling different gear ratios.

The term appears in machinery where indirect power transfer is needed: The countershaft connects the motor to the lathe.

mechanical

torque

Rotational force measurement

camshaft · flywheel · spindle · rotor · clutch · cogwheel · ratchet · linkage · kinematics · friction

drivetrain

jackshaft

Intermediate drive shaft

chain · differential · powertrain · drivetrain · coupling · reduction · overdrive · underdrive · direct-drive · adapter

gearbox

synchronizers

Devices aligning timing

Categories
Opposites
mechanical hierarchy/primacy

countershaftdrive shaft

Rotating torque-transfer bar

crankshaft · jackshaft

Family

count, shaft, counter, counteract, counterbalance, counterculture, countervail, counterclockwise, countercurrent

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G