40mm Axles | McMaster-Carr

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	System of Measurement System of Measurement

Metric

	Diameter Diameter	Show

40 mm

	Diameter Diameter	Hide

	Length Length

	End Type End Type


Straight	Keyed

	Material Material

Steel

Stainless Steel

	For Motion Type For Motion Type

	Rotary

	Mechanical Finish Mechanical Finish

Polished

Precision Ground

Turned

	Edge Type Edge Type

	Chamfered

	Hardness Hardness

Rockwell B95

Rockwell C50

Rockwell C60

	Hardness Rating Hardness Rating

Medium

Very Hard

	Yield Strength Yield Strength

50,000 to 69,999 psi

70,000 to 79,999 psi

80,000 psi or greater

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

DFARS Specialty Metals
COTS-Exempt

	Keyway Width Keyway Width

12mm

	Keyway Depth Keyway Depth

5mm

	Keyway Length Keyway Length

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20 Products

About Shafts

Combine these general purpose drive shafts with gears, sprockets, and bearings to transmit rotary motion. All are turned, ground, and polished to meet tight diameter and straightness tolerances.

Steel shafts are generally stronger than stainless steel shafts but not as corrosion resistant. 1566 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. Stainless steel shafts are more corrosion resistant than steel shafts but also more difficult to machine. 303 and 440C stainless steel shafts have good corrosion resistance. Shafts with chamfered edges have their edges ground to reduce damage to bearings, housings, and other components during installation.

For technical drawings and 3-D models, click on a part number.

Metric—1566 Carbon Steel
Lg.	Lg. Tolerance	Straightness Tolerance	Edge Type	Hardness Rating	Hardness	Yield Strength, psi		Each
40mm Dia. (Tolerance: -0.01mm to 0mm)
200mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C60	84,000	0000000	000000
400mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C60	84,000	0000000	00000
500mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C60	84,000	0000000	00000
1,000mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C60	84,000	0000000	000000
1,200mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C60	84,000	0000000	000000
1,500mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C60	84,000	0000000	000000
2,000mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C60	84,000	0000000	000000
Metric—440C Stainless Steel
40mm Dia. (Tolerance: -0.01mm to 0mm)
200mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C50	65,000	0000000	00000
400mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C50	65,000	0000000	000000
500mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C50	65,000	0000000	000000
1,000mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C50	65,000	0000000	000000
1,200mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C50	65,000	0000000	000000
1,500mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C50	65,000	0000000	000000
2,000mm	1.588mm to 1.588mm	0.03 mm per 300 mm	Chamfered	Very Hard	Rockwell C50	65,000	0000000	000000

Keyed Rotary Shafts

Combine these shafts with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components. All have an ANSI standard keyway (keys not included; see our selection of key stock). Their edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use.

For technical drawings and 3-D models, click on a part number.

Fully Keyed

	Keyway
Lg.	Lg.	Wd.	Dp.	ANSI Keys Included	Edge Type	Yield Strength, psi		Each
Metric—1045 Carbon Steel (Rockwell B95)
40mm Dia.
300mm	300mm	12mm	5mm	No	Chamfered	75,000	00000000	000000
500mm	500mm	12mm	5mm	No	Chamfered	75,000	00000000	00000
1,000mm	1,000mm	12mm	5mm	No	Chamfered	75,000	00000000	000000
1,200mm	1,200mm	12mm	5mm	No	Chamfered	75,000	00000000	000000
1,500mm	1,500mm	12mm	5mm	No	Chamfered	75,000	00000000	000000
1,800mm	1,800mm	12mm	5mm	No	Chamfered	75,000	0000000	000000