Very Hard Tubing | McMaster-Carr

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	Shape Shape

	Round Tube

	System of Measurement System of Measurement

Inch

Metric

	ID ID

	OD OD

	Wall Thickness Wall Thickness

1/32"

1/16"

	Material Material

Stainless Steel

Steel

	Length Length

	Diameter Diameter

	Tolerance Rating Tolerance Rating

Tight

	Fabrication Fabrication

Seamless

	Hardness Rating Hardness Rating	Show

Very Hard

	Hardness Rating Hardness Rating	Hide

	Mechanical Finish Mechanical Finish

Polished

Precision Ground

Turned

	Hardness Hardness

	End Type End Type


Hollow	Made to Order

Step Down	Straight

Tapped	Threaded

With Retaining Ring Grooves

	Heat Treatment Heat Treatment

Hardened

Case Hardened

	Yield Strength Yield Strength

Less than 20,000 psi

30,000 to 39,999 psi

40,000 to 99,999 psi

100,000 psi or greater

Not Rated

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	For Motion Type For Motion Type

	Linear
	Rotary

	Maximum Temperature Maximum Temperature

500° to 999° F

	Edge Type Edge Type

	Chamfered

	Specifications Met Specifications Met

ASTM

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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About Shafts

Tight-Tolerance Hardened 440C Stainless Steel

With a diameter that’s held to a close tolerance, this material is hardened for increased wear and abrasion resistance.

Linear Motion Shafts

Hollow Linear Motion Shafts

Lighter than solid shafts, hollow shafts reduce your total system weight and allow you to run various media such as electrical wiring, compressed air tubing, coolants, or lubricants through the center.

Linear Motion Shafts

Combine these general purpose shafts with a linear bearing and shaft support to create a basic linear motion system.

Threaded Linear Motion Shafts

Mount these externally threaded shafts into tapped holes rather than using a shaft support, or attach a hex nut, shaft collar, or other threaded accessory.

Tapped Linear Motion Shafts

Internal threads allow you to mount these shafts onto threaded studs and fasteners, no shaft supports needed.

Step-Down Linear Motion Shafts

A shoulder near the end of the shaft allows for easy positioning of housings, shaft supports, and collars.

Linear Motion Shafts with Machinable Ends

With 2" of each end softened, it's easier to machine a custom end for mounting. The rest of the shaft is case-hardened, which increases hardness and wear resistance on the surface of the shaft while allowing the center to remain soft for absorbing stresses caused by shifting loads.

Linear Motion Shafts with Retaining Ring Grooves

Clip retaining rings into the grooves to separate and position collars, supports, and housings.

Support-Rail Shafts

These shafts include a support rail for a stable setup that eliminates bending and prevents linear bearings from rotating.

Shafts for Support Rails

Replace worn shafts in two-piece support-rail shaft systems, or mate with a support rail to create your own. The tapped mounting holes match those on our Support Rails.

Rotary Shafts

Use these general purpose shafts with bearings, sprockets, and gears to transmit rotary motion.

Ultra-Straight Tight-Tolerance Rotary Shafts

Eight times straighter than standard rotary shafts, these tight-tolerance shafts minimize vibrations and reduce wear to bearings and other components. They also have diameter tolerances that are twice as tight as standard rotary shafts.