Metric Linear Bearings | McMaster-Carr

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System of Measurement

Shaft Diameter

Bearing Type

Rail Width

Housing Type

Overall Length

Material

Shaft Type

Round with Support Rail

Length

Overall Height

Shaft Material

Dynamic Load Capacity

Less than 1,000 lb.

1,000 lb. to 9,999 lb.

10,000 lb. to 19,999 lb.

20,000 lb. to 29,999 lb.

30,000 lb. or greater

Bearing Material

Carriage Width

Linear Bearing Component

Carriage Profile

Flange Shape

Carriage Length

Thread Size

REACH

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

1C999

EAR99

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

Yes

DFARS Specialty Metals

1,943 Products

Power Transmission

Linear Bearings

Minimize friction as parts move along a shaft

318 products

Linear Bearing Brakes

Lock bearings in place on a shaft for precise positioning

4 products

Carriages

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

373 products

Guide Rails

Use for short-travel, high-speed applications that require low friction

20 products

Carriage Guide Rail Mounts

Adapt guide rails to fit on T-slotted assemblies

7 products

Telescoping Rails

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

40 products

Ball Splines and Bearings

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

51 products

Track Rollers

Support and carry objects as they move along conveyor systems

215 products

Ball Screws and Nuts

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

56 products

Electric Slides

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

65 products

Air Slides

Convey grippers, printing heads, and other loads back and forth on a carriage

114 products

Electric Actuators

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

29 products

Roller Screws and Nuts

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

8 products

Ball Screw/Splines and Bearings

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

3 products

Precision Lead Screws and Nuts

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

164 products

Positioning Slides

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

25 products

End Supports for Ball Screws and Precision Lead Screws

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

3 products

Lead Screws and Nuts

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

29 products

Lead Screw Collars

Position components and limit travel along a lead screw

7 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

83 products