what is Pulley? A pulley, also called a pulley or a roller, is a mechanism composed of an axle or wheels on the axle. The axle or wheels on the axle may have a groove between two flanges on its circumference.You may not be familiar with it, but it is a very important mechanical part.There are usually ropes, cables, belts or chains passing through the wheels and in the grooves (if any). Pulley  Used for?Generally, they are used to change the direction of applied force, transmit rotational motion, or achieve mechanical advantages in linear or rotational motion systems.They can be used in ships, automobiles and many other places.

Now, I want to introduce the basic usage of pulleys.Most people know something about cars, but do you know about auto parts?I think few of you can nod.Among the various components, Pulley  Can be used to improve performance efficiency.But how does the pulley work?Most people know the importance of engines.In a car, the engine can provide more power than the wheels.Therefore, it is very necessary to improve the working efficiency of the engine.This requires the use of pulleys.For example, the engine works with the help of a belt and pulley system.In addition, when you want to repair your car, you should know something about engine pulleys.This kind of pulley may not be familiar to most people.The engine has several belts that drive the various parts of the engine, and the belts need pulleys so that they can be fixed in place and drive the various parts of the engine correctly.Two or more pulleys together are called pulleys.It is also called a rope and pulley system.The simplest operating theory of the pulley system assumes that the pulley and rope are weightless and there is no energy loss due to friction.It is also assumed that the line is not stretched.

Although the above analysis is not complete enough, it makes you understand Pulley, You can still learn basic information about it.I think remembering this information will help you.