2 1/2" Axles | McMaster-Carr

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9 Products

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.	Lg.	Wd.	Dp.	ANSI Keys Included	Straightness Tolerance	Dia. Tolerance	Hardness	Hardness Rating		Each
Carbon Steel







				2 1/2" Diameter

				3"	3"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K237	000000


				9"	9"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K239	000000
				12"	12"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K371	000000
				18"	18"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K979	000000
				24"	24"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K271	000000
				36"	36"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K272	000000
				48"	48"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K273	000000
				60"	60"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K274	000000
				72"	72"	5/8"	5/16"	No	0.013"/1 ft.	-0.0035" to 0"	Rockwell B95	Medium	1497K275	000000