Precision Slides | McMaster-Carr

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About Moment Loads

Ball Bearing Carriages and Guide Rails

These carriages and guide rails are steel.

Corrosion-Resistant Ball Bearing
Carriages and Guide Rails

Made of stainless steel, these carriages and guide rails are more corrosion resistant than steel carriages and guide rails.

Horizontal-Mount Ball Bearing
Carriages and Guide Rails

Designed specifically for use on horizontal surfaces, the contact angle of the ball bearings on the rail allows these carriages to last longer than other carriages.

Clean Room Ball Bearing Carriages and Guide Rails

Suitable for clean room use, these carriages and guide rails are made entirely of stainless steel.

Maintenance-Free Ball Bearing
Carriages and Guide Rails

These carriages and guide rails are steel.

Corrosion-Resistant Maintenance-Free
Ball Bearing Carriages and Guide Rails

Made of stainless steel, these carriages and guide rails are more corrosion resistant than steel carriages and guide rails.

Horizontal-Mount Quiet-Ride Ball
Bearing Carriages and Guide Rails

Designed for use on horizontal surfaces, the contact angle of the ball bearings on the rail allows these carriages to last longer than other carriages.

High-Cycle Ball Bearing Carriages and Guide Rails

A plastic cage surrounds the ball bearings and keeps them from colliding, so these carriages run for many cycles without needing maintenance.

Miniature Ball Bearing Carriages and Guide Rails

These tiny carriages and guide rails are sized for electronic and other precision applications.

High-Cycle Low-Profile Ball
Bearing Carriages and Guide Rails

Run many cycles in tight spaces before replacing or re-greasing carriages.

Extra-Wide Ball Bearing Carriages and Guide Rails

With a wide base and low-profile design, these carriages and guide rails stabilize moment (twisting) and off-center loads better than other carriages and rails. They're good for use in areas where multiple carriages or rails won't fit.

High-Cycle Extra-Wide Ball
Bearing Carriages and Guide Rails

With a plastic cage that surrounds the ball bearings to prevent them from colliding, these extra-wide carriages run quietly for many cycles without needing maintenance. All of these carriages have a wide base and low-profile design to stabilize moment (twisting) and off-center loads better than other carriages.

Sleeve Bearing Carriages and Guide Rails

Extra-Wide Sleeve Bearing Carriages and Guide Rails

With a wide base, these sleeve bearing carriages stabilize moment (twisting) and off-center loads better than standard carriages. Use in areas where multiple carriages or rails won't fit.

Locking Extra-Wide Sleeve
Bearing Carriages and Guide Rails

A handle on the side of the carriage locks the carriage in place.

Sleeve Bearing Carriages and Guide Rails

With fewer moving parts and no need for lubrication, sleeve bearing carriages perform better in dusty and wet environments than ball and roller bearing carriages. They're also better at handling impact and vibration.

Locking Sleeve Bearing Carriages and Guide Rails

A handle on the side of the carriage locks the carriage in place.

High-Temperature Sleeve Bearing
Carriages and Guide Rails

Use these carriages and guide rails in temperatures up to 300° F.

Side-Mount Sleeve Bearing Carriages and Guide Rails

C-shaped guide rails grip the carriage around the outside to support linear motion along walls and other vertical surfaces.

Low-Profile Sleeve Bearing Carriages and Guide Rails

For applications with low clearance, these carriages protrude less than 5 mm above their rails.

Square Sleeve Bearing Carriages and Guide Rails

The square profile prevents loads from twisting and rotating.

Sleeve Bearing Carriages and Guide Rails for Curves

Build loops, circuits, and curved paths in assembly stations and other repetitive processes.

Locking Sleeve Bearing Carriages
and Guide Rails for Curves

A handle locks these carriages in place on curved paths, loops, and circuits in assembly stations and other repetitive processes.

Track Roller Carriages and Guide Rails

Locking High-Load Track Roller
Carriages and Guide Rails

A handle on the side of the carriage locks the carriage in place.

High-Load Track Roller Carriages and Guide Rails

Needle-roller bearings give these track roller carriages higher load capacities than other track roller carriages.

Track Roller Carriages and Guide Rails

V-shaped rollers and rails allow these carriages to operate well in dirty environments because the debris won't get trapped on the rail.

High-Temperature Track Roller
Carriages and Guide Rails

High-temperature PTFE-thickened grease enables these carriages to operate in temperatures up to 500° F, higher than any other carriage that we offer.

Light Duty Track Roller Carriages and Guide Rails

Nylon rollers provide low-friction movement for light loads and corrosive environments.

Roller Bearing Carriages and Guide Rails

Roller bearing carriages handle heavier loads than ball bearing and track roller carriages.

Positioning Slides

Precision Positioning Slides

A linear scale and micrometer-like hand wheel measure travel distance in increments of 0.001".

High-Load Positioning Slides

Made with Frelon bearings, these slides have over four times the load capacity of standard positioning slides.

Low-Friction Telescoping Slides

Slides have a row of ball bearings on each side of the rail.

High-Load Low-Friction Telescoping Slides

With a row of crossed-roller bearings on each side of the rail, these slides have over twice the load capacity of standard low-friction slides and are better for handling shock loads.

Electric Actuators

Dry-Running Positioning Slides for Stepper Motors

With PTFE sleeve bearings and a low-friction ball screw, these slides don’t require the mess and maintenance of lubrication but still give you precise positioning anywhere along the length of their stroke.

Positioning Slides for Stepper Motors

Add your own stepper motor and controller to precisely move the ball screw and carriage smoothly at high speeds, like a head on an inkjet printer.