40mm Axles | McMaster-Carr

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13 Products

Rotary Shafts

Pair with gears, sprockets, and bearings to transmit rotary motion. Turned, ground, and polished to tight tolerances, these shafts reduce vibration, evenly distribute loads, and improve accuracy.

Carbon Steel—Strong and easy to machine. These shafts work best in dry environments since moisture will cause steel to rust.

				Material
	Lg., mm	Straightness Tolerance	Diameter Tolerance	Hardness	Hardness Rating		Each
Carbon Steel







				40 mm Diameter

				200	0.3 mm/300 mm	-0.051 mm to 0 mm	Brinell 197	Medium	4138N89	000000


				400	0.3 mm/300 mm	-0.051 mm to 0 mm	Brinell 197	Medium	4138N91	00000
				500	0.3 mm/300 mm	-0.051 mm to 0 mm	Brinell 197	Medium	4138N92	00000
				1,000	0.3 mm/300 mm	-0.051 mm to 0 mm	Brinell 197	Medium	4138N93	000000
				1,200	0.3 mm/300 mm	-0.051 mm to 0 mm	Brinell 197	Medium	4138N94	000000
				1,500	0.3 mm/300 mm	-0.051 mm to 0 mm	Brinell 197	Medium	4138N95	000000
				2,000	0.3 mm/300 mm	-0.051 mm to 0 mm	Brinell 197	Medium	4138N96	000000

Keyed Rotary Shafts

Match with a machine key to prevent slipping while transmitting torque to gears and other components. Turned, ground, and polished to tight tolerances, these shafts reduce vibration, evenly distribute loads, and improve accuracy.

Fully Keyed

Mount components anywhere along the length of these shafts. For secure torque transmission, slide a component from either end and lock it into place with an ANSI machine key (sold separately).

Carbon Steel—Strong and easy to machine. These shafts work best in dry environments since moisture will cause steel to rust.

		Keyway						Material
	Lg., mm	Lg.	Wd.	Dp.	ANSI Keys Included	Straightness Tolerance	Dia. Tolerance, mm	Hardness	Hardness Rating		Each
Carbon Steel







				40 mm Diameter

				300	300 mm	12 mm	5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K911	0000000


				500	500 mm	12 mm	5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K921	000000
				1,000	1,000 mm	12 mm	5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K931	000000
				1,200	1,200 mm	12 mm	5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K941	000000
				1,500	1,500 mm	12 mm	5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K951	000000
				1,800	1,800 mm	12 mm	5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K18	000000