Pulleys          04/13/16


Pulleys are of the the machines that make up the six simple machines. On the surface, pulleys are wheels with a fixed axis that support a rope going around it. The movement of the pulley will move the rope in effect. There are three types of pulley systems: A Fixed Pulley system that involves an axle being mounted by bearings. A Movable pulley has an axle in a movable block and has a mechanical advantage of 2. A Compound Pulley is a pulley that is a combination of the two aforementioned systems. Belts and Pulleys ar eoften combined in to hybrid Belt Pulley systems

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