One of the simple machines; a wheel with a grooved rim in which a pulled rope or chain will lift an object (more useful when two or more pulleys are used together such that a small force moving through a greater distance can exert a larger force through a smaller distance)
a sheave or small wheel with a grooved rim and with or without the block in which it runs used singly with a rope or chain to change the direction and point of application of a pulling force and in various combinations to increase the applied force especially for lifting weights
a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
{i} wheel with a grooved rim around which a rope or cord is wrapped (when one end of the rope is pulled downward, the wheel spins and raises the opposite end)
A wheel, usually cylindrical, but polygonal in cross section with its centre bored for mounting on a shaft
a wheel used with a belt that grips onto it There may be a groove in the pulley to help the belt grip
A wheel with a broad rim, or grooved rim, for transmitting power from, or imparting power to, the different parts of machinery, or for changing the direction of motion, by means of a belt, cord, rope, or chain
A device for transferring power when using Belts as Gearing Changing to smaller or larger Pulleys changes the gear ratio, and can be used to make a shaft turn faster or slower than the shaft that is providing its power
a small wheel with a grooved rim used with a rope or chain to change the direction of a pulling force and in combination to increase the force applied for lifting
A simple machine consisting of a wheel that rotates around a stationary axle The outer rim of the pulley is grooved to accommodate a rope or chain
a wheel over which a rope, chain, or belt passes Pulleys move things up, down, or across Example: curtain rod, tow truck, mini blind, flag pole, crane
A pulley is a device consisting of a wheel over which a rope or chain is pulled in order to lift heavy objects. a piece of equipment consisting of a wheel over which a rope or chain is pulled to lift heavy things (poulie, probably from polos; POLE). 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. In belt drives, pulleys are attached to shafts at their axes, and power is transmitted between the shafts by means of endless belts running over the pulleys. One or more independently rotating pulleys can be used to gain mechanical advantage, especially for lifting weights. The shafts around which the pulleys turn may attach them to frames or blocks, and a combination of pulleys, blocks, and rope is called a block and tackle. The pulley is considered one of the five simple machines
The device around which the lure and line flow The pulley keeps the course in position and allows for smooth, safe operation
a wheel over which a rope, chain or belt passes Pulleys can be used to change the speed of a mechanism If a large pulley is connected by a belt to a small pulley, the small pulley turns faster causing an increase in speed If a small pulley drives a large one, there is a decrease in speed but an increase in power