Question

differential axle and wheel machine is used to lift heavy load?

Answer 1

A crank replaces the wheel in devices such as windlasses, bicycle pedals, and hand drills. ... A wheel and axle has a theoretical mechanical advantage (ratio of the force delivered by themachine to the force put into themachine, disregarding friction) equal to the radius of the wheeldivided by the radius of the axle.

Answer 2

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Wheel and Axle, a simple machine consisting of a wheel (or crank) and an axle that turn on the same axis. Steering wheels, doorknobs, and screwdrivers are wheel-and-axle devices. A crank replaces the wheel in devices such as windlasses, bicycle pedals, and hand drills.

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