50mm Axles | McMaster-Carr

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6 mm

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5.5 mm

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7 Products

Flange-Mount Idler Rotary Shafts

Mount the flange to a machine or wall to support idler sprockets and pulleys in tensioning applications. They include washers and a nut to position your component and hold it in place.

			Overall, mm		Thread				Mounting Holes
	Dia., mm	Lg., mm	Lg.	Dia.	Size	Lg., mm	Flange Thk., mm	Bolt Circle Dia., mm	No. of	Dia., mm	Edge Type	Hardness Rating	Hardness		Each
Threaded End—Zinc-Plated 1215 Carbon Steel



		20	15	46	50	M18 × 2.5 mm	16.56	11	36	4	6	Straight	Medium	Rockwell B84	2435K34	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







				50 mm Diameter

				300	300 mm	14 mm	5.5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K131	0000000


				500	500 mm	14 mm	5.5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K132	000000
				1,000	1,000 mm	14 mm	5.5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K133	000000
				1,200	1,200 mm	14 mm	5.5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K134	000000
				1,500	1,500 mm	14 mm	5.5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K135	000000
				1,800	1,800 mm	14 mm	5.5 mm	No	0.33 mm/300 mm	-0.076 to 0	Rockwell B95	Medium	1439K19	000000