Pulleys

Pulleys are mechanical devices consisting of a wheel with a grooved rim, designed to change the direction of force applied to a rope or cable. They are commonly used to lift heavy objects, transmit power, and assist in various applications across industries, including construction, manufacturing, and transportation. Pulleys can be classified into different types, including fixed, movable, and compound pulleys, each serving unique functions. Fixed pulleys provide a change in direction of force, while movable pulleys reduce the amount of effort needed to lift loads. Compound pulleys combine multiple pulleys to enhance mechanical advantage further. Pulleys are essential in systems such as cranes, elevators, and conveyor belts, facilitating efficient movement and lifting of materials while minimizing physical strain on operators.