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 from 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.

What Is a Linear-Motion Bearing?

Dan Cavallari
By
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

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.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A linear-motion bearing is a device used to allow motion of an object in a linear direction. The bearings within the system are usually small steel balls, though other types of bearings exist to accomplish this task. The function of a linear-motion bearing is to allow smooth movement of an object in a linear fashion, unlike most bearings that facilitate movement in a round orientation or circular motion. The two major components of the system are the plane and rolling element; these components work together to facilitate smooth movement, very often in machines or industrial applications.

The rolling element consists of ball bearings contained within a sleeve or oriented along a track. A linear-motion bearing may contain ball bearings or roller bearings, which are flat cylinders. The bearings facilitate smooth, low-friction movement, and they are usually lubricated in some way to further reduce friction and encourage longer life of the linear-motion bearing system. In some cases, these bearings are fully contained within the system to protect them from dirt, grime, and even impact damage, though in other cases the bearings may be exposed along a track. The system usually involves the use of a fixed plane and a sliding plane that slide against each other with the bearings in between.

An example of a system that uses a linear-motion bearing would be a sliding table, which is commonly used in fabrication. The table itself can expand or contract as the individual pieces slide, thanks to the linear-motion bearing. Jigs mounted on the table may also be movable along a track that uses a linear-motion bearing, allowing the user to set up stops or guides in different configurations. This is useful when cutting angles or straight lines with a saw that must be guided to keep the cut straight.

A much simpler example of linear-motion bearings is the set of bearings used in many filing cabinets. The bearing planes are mounted on each side of the cabinet drawer, and another plane is fixed to the inside of the cabinet shell. As the drawer is pulled out, the ball bearings or roller bearings move within the planes to facilitate smooth movement of the drawer. This reduced friction is important for proper functioning of the drawer, especially when it is loaded down with a significant amount of weight. Older styles of filing cabinets did not feature such systems, and the drawers had a tendency to get stuck frequently when loaded with weight.

About Mechanics 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.
Dan Cavallari
By Dan Cavallari , Former Writer
Dan Cavallari, a talented writer, editor, and project manager, crafts high-quality, engaging, and informative content for various outlets and brands. With a degree in English and certifications in project management, he brings his passion for storytelling and project management expertise to his work, launching and growing successful media projects. His ability to understand and communicate complex topics effectively makes him a valuable asset to any content creation team.

Discussion Comments

Dan Cavallari

Dan Cavallari

Former Writer

Dan Cavallari, a talented writer, editor, and project manager, crafts high-quality, engaging, and informative content for various outlets and brands. With a degree in English and certifications in project management, he brings his passion for storytelling and project management expertise to his work, launching and growing successful media projects. His ability to understand and communicate complex topics effectively makes him a valuable asset to any content creation team.
About Mechanics, in your inbox

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

About Mechanics, in your inbox

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