25mm Axles | McMaster-Carr

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37 Products

Shaft Type

Round

Pair with gears, sprockets, and bearings to transmit rotary motion

21 products

Keyed

Match with a machine key to prevent slipping while transmitting torque

10 products

Shaft Type

D-Profile

Lock into D-shaped bores and secure components with a set screw

3 products

Splined

Evenly spaced teeth transmit heavy rotational loads

3 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.

High-Strength Alloy Steel—Our strongest steel shafts. However, they're more difficult to machine than carbon steel shafts.

Corrosion-Resistant 303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These shafts are easier to machine than other stainless steel shafts.

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







				25 mm Diameter

				200	0.3 mm/300 mm	-0.076 mm to 0 mm	Rockwell C25	Hard	1482K42	000000


				400	0.3 mm/300 mm	-0.076 mm to 0 mm	Rockwell C25	Hard	1482K43	00000
				500	0.3 mm/300 mm	-0.076 mm to 0 mm	Rockwell C25	Hard	1482K44	00000
				1,000	0.3 mm/300 mm	-0.076 mm to 0 mm	Rockwell C25	Hard	1482K45	00000
				1,200	0.3 mm/300 mm	-0.076 mm to 0 mm	Rockwell C25	Hard	1482K46	00000
				1,500	0.3 mm/300 mm	-0.076 mm to 0 mm	Rockwell C25	Hard	1482K47	00000
				2,000	0.3 mm/300 mm	-0.076 mm to 0 mm	Rockwell C25	Hard	1482K48	000000


				High-Strength Alloy Steel







								25 mm Diameter

								152	0.3 mm/300 mm	-0.025 mm to 0 mm	Rockwell C28	Hard	2672N55	00000


								305	0.3 mm/300 mm	-0.025 mm to 0 mm	Rockwell C28	Hard	2672N5	00000
								914	0.3 mm/300 mm	-0.025 mm to 0 mm	Rockwell C28	Hard	2672N57	000000
								1,829	0.3 mm/300 mm	-0.025 mm to 0 mm	Rockwell C28	Hard	2672N58	000000


								Corrosion-Resistant 303 Stainless Steel







												25 mm Diameter

												100	0.18 mm/300 mm	-0.01 mm to 0 mm	Rockwell B83	Medium	4143N51	00000


												200	0.18 mm/300 mm	-0.01 mm to 0 mm	Rockwell B83	Medium	4143N52	00000
												400	0.18 mm/300 mm	-0.01 mm to 0 mm	Rockwell B83	Medium	4143N53	000000
												600	0.18 mm/300 mm	-0.01 mm to 0 mm	Rockwell B83	Medium	4143N54	000000
												800	0.18 mm/300 mm	-0.01 mm to 0 mm	Rockwell B83	Medium	4143N55	000000
												1,000	0.18 mm/300 mm	-0.01 mm to 0 mm	Rockwell B83	Medium	4143N56	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.

Corrosion-Resistant 304 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. However, these shafts are more difficult to machine than carbon steel shafts.

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







				25 mm Diameter

				300	300 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B95	Medium	1439K811	000000


				500	500 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B95	Medium	1439K821	00000
				1,000	1,000 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B95	Medium	1439K831	000000
				1,200	1,200 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B95	Medium	1439K841	000000
				1,500	1,500 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B95	Medium	1439K851	000000
				1,800	1,800 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B95	Medium	1439K17	000000


				Corrosion-Resistant 304 Stainless Steel







								25 mm Diameter

								200	200 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B90	Medium	7398K224	00000


								400	400 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B90	Medium	7398K225	00000
								1,000	1,000 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B90	Medium	7398K226	000000
								2,000	2,000 mm	8 mm	4 mm	No	0.33 mm/300 mm	-0.0635 to 0	Rockwell B90	Medium	7398K227	000000

Undersized Rotary Shafts

Slide precision ball bearings (ABEC-3 and above) onto these shafts. The diameter is slightly smaller than listed, so you don't need to use a bearing heater or mechanical press, which can cause damage. Turned, ground, and polished to tight tolerances, these shafts reduce vibration, evenly distribute loads, and improve accuracy.

Corrosion-Resistant 303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These shafts are easier to machine than other stainless steel shafts.

				Material
	Lg., mm	Straightness Tolerance	Diameter Tolerance	Hardness	Hardness Rating		Each
Corrosion-Resistant 303 Stainless Steel







				25 mm Diameter

				200	0.18 mm/300 mm	-0.01 mm to -0.005 mm	Rockwell B83	Medium	4149N42	000000


				400	0.18 mm/300 mm	-0.01 mm to -0.005 mm	Rockwell B83	Medium	4149N43	000000
				600	0.18 mm/300 mm	-0.01 mm to -0.005 mm	Rockwell B83	Medium	4149N44	000000
				1,000	0.18 mm/300 mm	-0.01 mm to -0.005 mm	Rockwell B83	Medium	4149N45	000000

Splined Rotary Shafts

Often used in hydraulic and other high-torque applications, these shafts have evenly spaced teeth to transmit heavy rotational loads. They handle more torque and last longer than keyed shafts since they have multiple contact points. Pair them with splined sleeve bushings (sold separately). Compatible bushings and components slide right along the splines, making these shafts a good choice for frequent disassembly and adjustments.

Fully Parallel Splined

The large, straight-sided teeth resemble machine keys and transmit more torque than involute-spline teeth. These shafts are fully splined, so you can mount components anywhere along their length.

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

Sleeve Bushings—Transmit rotary motion or position loads along a shaft. These bushings also work as couplers—they can join two splined shafts when welded into place.

Flanged Sleeve Bushings—The flange has mounting holes for attaching your load.

	Shafts							Sleeve Bushings		Flanged Sleeve Bushings
				Material
	Dia., mm	Lg., mm	No. of Splines	Hardness	Hardness Rating		Each		Each		Each
Carbon Steel



		25	1,000	6	Not Rated	Not Rated	61145K431	0000000	61145K189	0000000	61145K343	0000000

D-Profile Rotary Shafts

Lock gears, sprockets, and bearings in place so they won't slip as these shafts turn. The flat length mates with D-shaped bores for a secure connection while giving set screws an even surface to dig into. 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	Flat Wd., mm	Straightness Tolerance	Diameter Tolerance	Hardness	Hardness Rating		Each
Carbon Steel







				25 mm Diameter

				200	12.5	0.33 mm/300 mm	-0.05 mm to 0 mm	Brinell 197	Medium	8632T389	000000


				400	12.5	0.33 mm/300 mm	-0.05 mm to 0 mm	Brinell 197	Medium	8632T39	00000
				1,200	12.5	0.33 mm/300 mm	-0.05 mm to 0 mm	Brinell 197	Medium	8632T391	00000