Linear Slides/

Linear Rails

A linear rail, also known as a linear guide or guide rail, consists of a smooth, flat base that is used to support and guide the motion of linear bearings. Typically stationary, linear rails have grooves ground into their sides that run along the entire length of the rail, in which the linear bearing roller element, whether it by cylindrical or spherical, can move within. Since the linear bearings are limited by the grooves, linear rails are able to control the direction that the linear bearings move in.

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Del-Tron Precision, Inc.
Bethel, CT
203-778-2727
Del-Tron Precision is your one-stop shop for ball & crossed roller slides, multi-axis positioning and motor-ready lead screw stages, air actuators, recirculating slide guides and crossed roller rail sets. Custom linear rails are available. Visit our website to find life/load calculators. Our greatest strength is to offer components which provide a reliable mechanical interface for equipment.
 
Tusk Direct, Inc.
Bethel, CT
800-447-2042
Tusk Direct is synonymous with linear rails. Our linear motion components are perfect matches for automated assembly equipment. Ball & crossed roller slides, linear bearings, economic linear bearings, Teflon linear bearings, multi-axis positioners are just a few of our high quality products. Call before noon and we'll ship your products same day. We want TUSK to be the name you think of!
 
Velmex, Inc.
Bloomfield, NY
800-642-6446
Established in 1967, Velmex makes manual & motor driven linear rails and other linear motion components. You can choose from hand, lead screw or belt drive. Our UniSlide, XSlide & BiSlide assemblies can do scanning, indexing and positioning. Use them to move sensors, antennas, cameras, measure distance & more. See our website for more information, or call today!
 
Parker Hannifin - Electromechanical Division
Rohnert Park, CA
800-272-7537
The mission of the Electromechanical Division of Parker Hannifin is to deliver a wide range of high-quality motion control systems to meet any application need. Designed for easy configuration to make a complete motion system - from miniature precision for life sciences to overhead gantries for the factory floor - we are the place to go. Give us a call today if you need linear rails.
 
Schock Metal America Inc.
Chesapeake, VA
800-345-8550
At Schock Metal America, we are the specialists in custom engineered linear rails. For over 40 years we have been industry leaders in manufacturing full and partial extension slides and stages of many kinds. Serving the furniture, industrial, medical, transportation and appliances markets, our experience secures your success no matter what application you require.
 
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Industry Information

Linear Rails

As an integral part of a linear slide, linear rails are utilized in a wide range of industries including: medical and pharmaceutical, for use in drug dispensing applications as well as positioners in hospital furniture such as beds and chairs; food and beverage, for processing and packaging applications; industrial manufacturing, for use in automated machinery such as drilling and grinding machines as well as other factory and process automation applications; and automotive, for use in components such as engine compartments. Linear rails are also used in many other diverse industries, such as semiconductor, chemical processing, optical, textile and commercial, for application ranging from office machinery to CNC machining centers.

Linear rails have a very simple design: solid, flat metal body with two grooved sides that extend from the flat base in 90ยบ angles. The size of the grooves, also known as raceways, affects the load-carrying capacity of the linear slide. A linear rail is one of the main components of a linear slide, the other being a moving carriage. The moving carriage has mobility due to either ball bearings or roller bearings; although, ball bearings are more common. Inside the moving carriage there is typically a type of screw assembly, either with a ball screw or lead screw, and a nut. The nut provides the linear movement since it is threaded onto the non-rotating part of the screw, then driven along the threads of the screw in the corresponding direction to the screw's rotational movement. Linear rails can be either manual or motorized. Motorized linear rails have a more complex design, and both types can be hardened or ground for increased tensile strength. Some common types of motorized linear rails include belt drive rails and chain drive rails. Linear belt drive rails have the addition of a belt made from various elastomers, allowing for quiet, yet rapid linear motion. Often used as alternatives to belt drive rails, linear chain drive rails are better suited for high temperature environments and are mainly employed in lifting applications.