Gear Jack Shaft

Gear Jack Shaft

A jackshaft, this can also be called a countershaft, is a part in common machines that is used to help transfer and then synchronize the force of a rotating machine part. It’s a torque converter in short. Jackshafts are designed as a shot stub that has bearings on both ends and having two pulleys, some gears and possibly cranks that are attached to it to help transfer the rotational power. A jackshaft is a term that is somewhat blanket like as it can apply to any shaft that is used to transfer power and transmit it from the drive shaft that is moving to another shaft or another part of the engine or machine.