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. A sheave or pulley wheel is a pulley using an axle supported by a frame or shell (block) to guide a cable or exert force.

2022年1月18日 · A pulley is a simple machine consisting of a wheel rotating about its axle. It is constructed by looping a rope or a cable around the groove of the wheel. Therefore, the three main parts of a pulley are the wheel, axle, and rope.

A pulley is a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulley is used singly or in combination to transmit energy

2023年11月17日 · A pulley is simply a collection of one or more wheels over which you loop a rope (or chain) to make it easier to lift things. Here's an everyday example: Photo: A pulley mounted on a huge lifting frame to make it safer to use.

The meaning of PULLEY is 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.

2023年7月4日 · A pulley is a type of wheel on a shaft designed to change the direction of a belt and to support the transfer of power between the shaft and belt. A pulley has a groove inside the flange around its circumference to hold the cable or belt. The main element of a pulley system is a rope, cable, belt, or chain. Pulley is fixed on the shaft or ...

5 天之前 · A pulley is 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. Pulleys with grooved rims are called sheaves.

Pulley is a simple wooden or metallic machine that uses a wheel and rope to lift heavy loads. Explore more about types and formula of the pulley at BYJU'S

PULLEY definition: 1. a piece of equipment for moving heavy objects up or down, consisting of a small wheel over which…. Learn more.

2022年7月25日 · A pulley consists of a wheel that is mounted on an axle or a shaft, this wheel can be driven by a chain, belt, rope, etc. Pulleys are generally used for changing the direction of the force and decreasing the amount of input force. You may observe a pulley inside the elevators, in the gyms, on construction sites, etc. Pulley Example: