Linear Motion Shafts | McMaster-Carr

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1/32" to 11/32"

1/32" to 15/32"

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Acme Lead Screw

Round with Support Rail

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Stress Relieved

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Ball Screw with One Machined End

Shaft-Mounted Worm

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19,653 Products

Linear Shafts

Linear Shafts

Pair with linear bearings and shaft supports to create smooth, precise motion

Tapped Linear Shafts

Tapped Linear Shafts

Mount directly with studs, bolts, and other threaded fasteners—no shaft supports needed

Threaded Linear Shafts

Threaded Linear Shafts

Screw into a tapped hole, or attach a nut for mounting—no shaft supports needed

Hollow Linear Shafts

Hollow Linear Shafts

Substantially lighter in weight than standard shafts and best for light loads

Tight-Tolerance Linear Shafts

Tight-Tolerance Linear Shafts

Diameter tolerance is at least two times tighter than standard linear shafts

Linear Shafts with Machinable Ends

Linear Shafts with Machinable Ends

With 2" of softened metal on each end, machine these shafts for custom mounting

Support-Rail Shafts

Support-Rail Shafts

Attached support rails prevent bending or bearing misalignment under moderate to heavy loads

Build-Your-Own Support-Rail Shafts

Build-Your-Own Support-Rail Shafts

Choose a shaft and a matching support rail to create a custom setup

Other Products

Linear Bearings

Linear Bearings

Minimize friction as parts move along a shaft

Steel

Strong, machinable, and weldable—all with material certificates for traceability

Linear Shaft Supports

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

Carriages and Guide Rails

Carriages and Guide Rails

Carry loads along guide rails on accurate and repeatable paths in automated systems

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

Ball Screws and Nuts

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

Precision Lead Screws and Nuts

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

Tungsten

Our densest metal resists wear and heat to make end mills, heat shields, electrodes, and more

Linear Bearing Brakes

Linear Bearing Brakes

Lock bearings in place on a shaft for precise positioning

Ball Splines and Bearings

Ball Splines and Bearings

Combine ball splines and bearings to create linear and rotary motion systems

Lead Screws and Nuts

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

Positioning Slides

Positioning Slides

A lead screw drives the carriage for accurate positioning in laboratory and production equipment

Ball Screw/Splines and Bearings

Ball Screw/Splines and Bearings

Transmit rotary power, move loads along the shaft, or do both at once

Plastic

A lightweight alternative to metal and glass

Carriage Guide Rail Mounts

Carriage Guide Rail Mounts

Adapt guide rails to fit on T-slotted assemblies

Brass

More machinable than copper and bronze—all with material certificates for traceability

Electric Slides

Electric Slides

Move parts with precision in electronics, robotics, and other automated processes

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

Drawer Slides

Smoothly guide drawers in and out of cabinets

Telescoping Rails

Telescoping Rails

Carry heavy loads, such as in pick-and-place applications, machine tool doors, and press arms

Garolite

A strong, machinable alternative to metal and plastic widely used in circuit boards and gears

Fiberglass

A lightweight alternative to metal and wood widely used in electrical and structural applications

Hard Fiber

Chemically treated to be hard and dense, this is the easiest composite to machine in our offering

End Supports for Ball Screws and Precision Lead Screws

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

Roller Screws and Nuts

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

Spur Gears

The simplest type of gear for transferring motion, with straight, parallel teeth

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

Spur Gear Racks

Spur Gear Racks

Match with spur gears to convert rotary motion to linear motion

Threaded Rod Collars

Threaded Rod Collars

Hold and position parts on a threaded rod

Ratchet Gears and Pawls

Ratchet Gears and Pawls

Transmit motion in one direction and stop it in the other

Molybdenum

Retains its shape and strength in extreme temperatures—all with material certificates for traceability

Timing Belt Pulley Stock

Timing Belt Pulley Stock

Machine your own timing belt pulleys to fit an exact width and shaft diameter

Cobalt

Resists impact and rapid temperature changes—all with material certificates for traceability

Niobium

Conductive and corrosion resistant even at extreme temperatures—all with material certificates for traceability

Bevel Gears

Reduce speed while transmitting motion at a right angle

Electric Actuators

Electric Actuators

Push and pull loads with more precise positioning than air and hydraulic cylinders

Zinc

Draws corrosion away from nearby metal; an alternative to lead for sound barriers and vibration dampers

Precision Lead Screw Nut Flanges

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

Sleeve Splines and Bearings

Sleeve Splines and Bearings

Combine sleeve splines and bearings to create linear and rotary motion systems

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

Internal Spur Gears

Internal Spur Gears

Teeth on the inside mesh with standard spur gears to save space

Linear Drive Nuts

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

Titanium

The most corrosion-resistant metal we offer—all with material certificates for traceability

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

Worm Gears

Reduce speed while transferring motion at a right angle in only one direction

Miter Gears

Connect shafts at a right angle without changing speed or torque

Lead Screw Collars

Lead Screw Collars

Position components and limit travel along a lead screw

Helical Gears

Curved teeth stay in contact longer to transmit heavier loads at higher speeds than spur gears

Track Rollers

Support and carry objects as they move along conveyor systems

Spur Gear Stock

Spur Gear Stock

Machine your own gears to an exact face width and shaft diameter

Kevlar

Super tough for protection against prolonged wear and abrasion

Helical Gear Racks

Helical Gear Racks

Pair with a helical gear to convert rotary motion to linear motion

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)