What Are Pulleys Used for?

Answer

A pulley is wheel that has a grooved edge around which a string passes. It acts to alter the direction of force which is applied to the string and is mainly applied to increase speed or power while raising heavy weights.
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What Are Pulleys Used For?
Pulleys are one of the machines described by Archimedes and one of the "six simple machines" described by Renaissance scientists. Pulleys are small grooved wheels that redirect the force applied to a rope, wire or chain. When you pull a rope running over... More »
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Pulleys are used in a variety of ways i.e. to lift loads, apply forces, and to transmit power. It is designed to support movement of a cable or belt along its circumference. The drive element of a pulley system can be a rope, cable, belt, or chain running over the pulley inside the groove.
A?pulley is also known as a?sheave?or a?drum. It is a mechanism composed of a?wheel,?shaft or??on an?axle that may have a?groove?between two?flanges,?around its?boundary.
A pulley is used for lifting large objects to high places. Pulleys are mainly used in construction sites and are made of rope and cables.
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