We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Industry

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What Is a Grooved Pulley?

By Mark Wollacott
Updated: May 17, 2024
Views: 12,746
Share

A grooved pulley has a number of grooves running around the outer rim of a pulley. It is used to reduce the amount of force needed to move or lift an object. The grooves allow for more protection from belt drift, which can break a machine. Such pulleys are often cast-made in factories.

Pulleys form one of mankind’s most simple machines. The term comes from Old French via Medieval Greek and Latin. The original word polidia means ‘little pivots’ rather than being related to wheels. The machines themselves are of an older pedigree and are one of man’s earliest creations.

A single belt is used to connect a number of pulley wheels together. This belt can be made from cable, chain, rope or a fabric belt. A grooved pulley can be used by itself or in conjunction with one or more other pulleys. There are several types of basic pulley systems in use around the world.

The fixed pulley keeps the axle in a fixed position. This allows for additional stability, but limits the amount of additional power it can provide. A movable pulley system can multiply the power produced by two, but has less stability. The compound system, on the other hand, combines elements of both fixed and movable pulleys and can produce more than twice as much power.

The grooved pulley does not change the work being done. Instead, it reduces the amount of force needed in order to complete its designed task. This usually involves moving or lifting an object. The pulley and the belt are put in place so that they are essentially weightless. This means there is little friction to reduce the amount of energy being transferred into the system’s task.

Normal pitch and timer pulleys require a flange around the rim of the pulley. A flange is a protective wall to stop the belt from slipping off. The natural advantage of the grooved pulley is that its grooves work in the same manner as flanges. As the pulley has a number of grooves, it means belts of different sizes or a different number of belts can be used so long as they fit within the grooves.

The grooved pulley has a number of advantages. It allows for a smooth and relatively quiet running of the machine. The multiple grooves can be designed specifically for a job and can vary in size and style. Well-designed grooves offer excellent grip and avoid slippage.

A grooved pulley is usually made from cast iron or steel. They can also be made out of aluminum and soft alloys, but these are more likely to break. The grooved pulley is cheap to replace compared to other types of pulley.

Share
WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Editors' Picks

Discussion Comments
Share
https://www.wisegeek.net/what-is-a-grooved-pulley.htm
Copy this link
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.