A pulley is a wheel on an axle or shaft enabling a taut cable or belt passing over the wheel to move and change direction, or transfer power between itself and a shaft.

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Jan 18, 2022 · What is a pulley simple machine. How does it make work easier. Learn its types, examples, mechanical advantage, uses, & applications.

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Apr 21, 2025 · That's broadly how a pulley works, except that you add a couple of wheels—to replace your friend and so you can pull the rope from the bottom instead of the top.

Dec 3, 2025 · Pulley, in mechanics, a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to transmit energy and motion.