Linear Shafts | McMaster-Carr

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System of Measurement

Diameter

Length

Material

End Type

Shape

Shaft Type

Acme Lead Screw

Round with Support Rail

Shaft Diameter

1/32" to 11/32"

1/32" to 15/32"

1/32" to 17/32"

1/32" to 19/32"

1/32" to 21/32"

1/32" to 11/16"

1/32" to 13/16"

1/32" to 1 3/32"

Thread Size

Mechanical Finish

Precision Ground

Rail Width

Hardness

OD

ID

Performance

Adjustable Width

Automated Control

Bearing Quality

Chemical Resistant

Corrosion Resistant

Crack Resistant

Creep Resistant

Heat Treatment

Stress Relieved

For Motion

Linear and Rotary

Hardness Rating

RoHS

Compliant with Exemptions

REACH

Edge Type

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Tolerance Rating

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20,034 Products

Power Transmission

Linear Shafts

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

Linear Shaft Supports

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

Shaft Collars

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

Carriages and Guide Rails

Carriages and Guide Rails

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

Telescoping Rails

Telescoping Rails

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

Carriage Guide Rail Mounts

Carriage Guide Rail Mounts

Adapt guide rails to fit on T-slotted assemblies

Positioning Slides

Positioning Slides

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

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

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

Ball Screw/Splines and Bearings

Ball Screw/Splines and Bearings

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

Sleeve Splines and Bearings

Sleeve Splines and Bearings

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

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

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

Linear Drive Nuts

Linear Drive Nuts

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

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

Lead Screw Collars

Lead Screw Collars

Position components and limit travel along a lead screw

Linear Bearings

Linear Bearings

Minimize friction as parts move along a shaft

Linear Bearing Brakes

Linear Bearing Brakes

Lock bearings in place on a shaft for precise positioning

Spur Gear Racks

Spur Gear Racks

Match with spur gears to convert rotary motion to linear motion

Spur Gears

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

Ratchet Gears and Pawls

Ratchet Gears and Pawls

Transmit motion in one direction and stop it in the other

Bevel Gears

Reduce speed while transmitting motion at a right angle

Worm Gears

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

Spur Gear Stock

Spur Gear Stock

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

Miter Gears

Connect shafts at a right angle without changing speed or torque

Internal Spur Gears

Internal Spur Gears

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

Helical Gear Racks

Helical Gear Racks

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

Helical Gears

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

Electric Slides

Electric Slides

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

Electric Actuators

Electric Actuators

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

Track Rollers

Support and carry objects as they move along conveyor systems

Timing Belt Pulley Stock

Timing Belt Pulley Stock

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

Raw Materials

Steel

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

Stainless Steel

Stainless Steel

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

Aluminum

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

Tungsten

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

Bronze

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

Brass

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

Copper

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

Niobium

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

Titanium

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

Lead

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

Molybdenum

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

Cobalt

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

Nickel

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

Zinc

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

Plastic

A lightweight alternative to metal and glass

Carbon Fiber

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

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

Kevlar

Super tough for protection against prolonged wear and abrasion

Hard Fiber

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

Ceramic

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

Building and Machinery Hardware

Drawer Slides

Smoothly guide drawers in and out of cabinets

Fastening and Joining

Threaded Rod Collars

Threaded Rod Collars

Hold and position parts on a threaded rod

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