1 1/4" Axles | McMaster-Carr

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99 Products

Wheel Axles

Axle

Replace worn or broken caster axles.

Thread Lg.	Includes		Each







Steel with Blue-Painted Head

1 1/4"	6 3/8"	1 1/4"-12	1 3/8"	Hex Nut	23595T22	000000

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.

Chrome-Plated Carbon Steel—The chrome plating creates a hard, protective barrier that withstands moisture. However, it can chip or flake under repeated impact or shock loads.

Corrosion-Resistant Nitride-Coated Carbon Steel—Combine the strength of steel with the corrosion resistance of stainless steel. The nitride coating resists moisture, oxidation, and mild chemicals, but not salt water or strong acids and alkalis. Unlike chrome plating, it won't flake or chip.

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.

Highly Corrosion-Resistant 316 Stainless Steel—More corrosion resistant than 303 and 304 stainless steel shafts. They stand up to salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.

				Material		Finish
	Lg.	Straightness Tolerance	Diameter Tolerance	Hardness	Hardness Rating	Hardness	Hardness Rating		Each
Carbon Steel







				1 1/4" Diameter

				12"	0.012"/1 ft.	-0.004" to 0"	Rockwell C25	Hard	—	—	1346K44	000000


				18"	0.012"/1 ft.	-0.004" to 0"	Rockwell C25	Hard	—	—	1346K531	00000
				24"	0.012"/1 ft.	-0.004" to 0"	Rockwell C25	Hard	—	—	1346K45	00000
				36"	0.012"/1 ft.	-0.004" to 0"	Rockwell C25	Hard	—	—	1346K46	00000
				48"	0.012"/1 ft.	-0.004" to 0"	Rockwell C25	Hard	—	—	1346K47	00000
				60"	0.012"/1 ft.	-0.004" to 0"	Rockwell C25	Hard	—	—	1346K48	000000
				72"	0.012"/1 ft.	-0.004" to 0"	Rockwell C25	Hard	—	—	1346K49	000000
				120"	0.012"/1 ft.	-0.002" to 0"	Brinell 197	Medium	—	—	4138N13	000000


				Chrome-Plated Carbon Steel







								1 1/4" Diameter

								12"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K18	00000


								18"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K31	00000
								24"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K43	00000
								36"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K55	00000
								48"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K67	000000


								Corrosion-Resistant Nitride-Coated Carbon Steel







												1 1/4" Diameter

												12"	0.0125"/1 ft.	-0.001" to 0"	Not Rated	Not Rated	Rockwell C60	Extra Hard	5936K14	00000


												18"	0.0125"/1 ft.	-0.001" to 0"	Not Rated	Not Rated	Rockwell C60	Extra Hard	5936K22	00000
												24"	0.0125"/1 ft.	-0.001" to 0"	Not Rated	Not Rated	Rockwell C60	Extra Hard	5936K29	00000
												36"	0.0125"/1 ft.	-0.001" to 0"	Not Rated	Not Rated	Rockwell C60	Extra Hard	5936K37	00000
												48"	0.0125"/1 ft.	-0.001" to 0"	Not Rated	Not Rated	Rockwell C60	Extra Hard	5936K45	000000
												60"	0.0125"/1 ft.	-0.001" to 0"	Not Rated	Not Rated	Rockwell C60	Extra Hard	5936K94	000000


												High-Strength Alloy Steel







														1 1/4" Diameter

		6"	0.0125"/1 ft.											-0.001" to 0"	Rockwell C28	Hard	—	—	2672N37	00000


		12"	0.0125"/1 ft.											-0.001" to 0"	Rockwell C28	Hard	—	—	2672N38	00000
		36"	0.0125"/1 ft.											-0.001" to 0"	Rockwell C28	Hard	—	—	2672N39	000000
		72"	0.0125"/1 ft.											-0.001" to 0"	Rockwell C28	Hard	—	—	2672N41	000000


		Corrosion-Resistant 303 Stainless Steel







																1 1/4" Diameter

				12"	0.0072"/1 ft.											-0.0004" to 0"	Rockwell B83	Medium	—	—	8364T23	000000


				18"	0.0072"/1 ft.											-0.0004" to 0"	Rockwell B83	Medium	—	—	8364T24	000000
				24"	0.0072"/1 ft.	-0.0004" to 0"										Rockwell B83	Medium	—	—	8364T25	000000
				36"	0.0072"/1 ft.	-0.0004" to 0"	Rockwell B83									Medium	—	—	8364T26	000000
				48"	0.0072"/1 ft.	-0.0004" to 0"	Rockwell B83									Medium	—	—	8364T37	000000
				60"	0.0072"/1 ft.	-0.0004" to 0"	Rockwell B83									Medium	—	—	8364T47	000000
				72"	0.0072"/1 ft.	-0.0004" to 0"	Rockwell B83									Medium	—	—	8364T54	00000000


				Highly Corrosion-Resistant 316 Stainless Steel







								1 1/4" Diameter

								18"	0.003"/1 ft.							-0.001" to 0"	Rockwell B89	Medium	—	—	6493K21	000000


								36"	0.003"/1 ft.							-0.001" to 0"	Rockwell B89	Medium	—	—	6493K22	000000
								60"	0.003"/1 ft.	-0.001" to 0"						Rockwell B89	Medium	—	—	6493K23	000000

Thread-Mount Idler Rotary Shafts


Tensioner Shown with Idler Shaft (Sold Separately)	Shaft Collar End	Retaining-Ring-Grooves End

Shaft Collar End

Retaining-Ring-Grooves End

Thread these shafts into a tapped hole to support idler sprockets and pulleys in tensioning applications.

Shaft Collar End—Shafts with a shaft collar come with a grease fitting for easy lubrication of your pulleys and sprockets. Adjust the collar to the width of your component.

Retaining-Ring-Grooves End—Shafts with retaining ring grooves come with a retaining ring and spacers to position your component and hold it in place.

			Overall		Thread		Groove
	Dia.	Lg.	Lg.	Dia.	Size	Lg.	Wd.	Dia.	End-to-Groove Lg.	Edge Type	Fabrication	Hardness Rating	Hardness		Each
Shaft Collar End—1215 Carbon Steel



		3/4"	2 7/16"	4 3/8"	1 1/4"	1/2"-20	7/8"	—	—	—	Chamfered	Hardened	Extra Hard	Rockwell C58	2435K103	000000


		Retaining-Ring-Grooves End—Zinc-Plated 1215 Carbon Steel



				3/4"	5/8"	1 25/32"	1 1/4"	3/8"-16	45/64"	0.056"	0.58"	0.125"	Chamfered	—	Not Rated	Not Rated	2435K5	00000

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



		3/8"	7/16"	1 3/16"	1 1/4"	5/16"-18	15/32"	9/32"	29/32"	4	5/32"	Straight	Not Rated	Not Rated	2435K12	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.

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

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







				1 1/4" Diameter

				3"	3"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K154	000000


				6"	6"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K155	00000
				9"	9"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K156	00000
				12"	12"	1/4"	1/8"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T114	00000
				12"	12"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K411	00000
				18"	18"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K966	00000
				24"	24"	1/4"	1/8"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T115	00000
				24"	24"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K401	00000
				36"	36"	1/4"	1/8"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T116	000000
				36"	36"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K402	00000
				48"	48"	1/4"	1/8"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T117	000000


				48"	48"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K403	000000
				60"	60"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K404	000000
				72"	72"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B95	Medium	—	—	1497K405	000000


				High-Strength Alloy Steel







								1 1/4" Diameter

								12"	12"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B98	Medium	—	—	3048N7	00000


								36"	36"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B98	Medium	—	—	3048N8	000000
								72"	72"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B98	Medium	—	—	3048N9	000000


								Corrosion-Resistant 304 Stainless Steel







												1 1/4" Diameter

												3"	3"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K62	00000


												6"	6"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K63	00000
												9"	9"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K64	00000
												12"	12"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K26	00000
												24"	24"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K16	000000
												36"	36"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K36	000000
48"												48"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K56	000000
60"	60"											1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K76	000000
72"	72"											1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K96	000000
120"	120"											1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K233	000000
144"	144"											1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7398K234	000000


Highly Corrosion-Resistant 316 Stainless Steel







												1 1/4" Diameter

												3"	3"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K62	00000


												6"	6"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K63	00000
												9"	9"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K64	00000
												12"	12"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K26	000000
												24"	24"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K16	000000
												36"	36"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K36	000000
												48"	48"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K56	000000
												60"	60"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K76	000000
												72"	72"	1/4"	1/8"	No	0.013"/1 ft.	-0.003" to 0"	Rockwell B85	Medium	—	—	7405K96	000000

Partially Keyed

These shafts combine keyed ends with a plain center for versatile assembly. The keyways on the ends lock with the included ANSI machine keys to transmit torque to components such as gears and sprockets. The plain center fits bearings and other round-bore parts.

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

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.

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







				1 1/4" Diameter

				24"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K171	0000000


				24"	4", 14"	5/16", 5/16"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K176	000000
				36"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K172	000000
				36"	4", 14"	5/16", 5/16"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K177	000000
				48"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K173	000000
				48"	4", 14"	5/16", 5/16"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K178	000000
				60"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K174	000000
				60"	4", 14"	5/16", 5/16"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K179	000000
				72"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K175	000000
				72"	4", 14"	5/16", 5/16"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K181	000000


				Corrosion-Resistant 303 Stainless Steel







								1 1/4" Diameter

								24"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.001" to 0"	Rockwell B80	Medium	8377T34	000000


								36"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.001" to 0"	Rockwell B80	Medium	8377T35	000000
								48"	4", 14"	1/4", 1/4"	1/8", 1/8"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.001" to 0"	Rockwell B80	Medium	8377T36	000000

Plug-In Shafts for Flexible-Mount Right-Angle Speed Reducers

Convert output drives from female to male.

For 1 Output

Image of Product. Front orientation. Contains Annotated, Inset. Gear Box Shafts. Plug-In Shafts for Flexible-Mount Right-Angle Speed Reducers, For 1 Output.

Dia.	Overall Lg.	Output Lg.	Mounting Hole Thread Size	Includes		Each
1 1/4"	7.95"	2.76"	1/2"-13	Key Stock	6771K54	000000

For 2 Outputs

Image of Product. Front orientation. Contains Annotated, Inset. Gear Box Shafts. Plug-In Shafts for Flexible-Mount Right-Angle Speed Reducers, For 2 Outputs.

Shafts for two outputs are long enough to extend from both sides of the speed reducer.

Dia.	Overall Lg.	Output Lg.	Mounting Hole Thread Size	Includes		Each
1 1/4"	10.51"	2.76"	1/2"-13	Key Stock	6771K61	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.

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



		1 1/4"	10"	6	Not Rated	Not Rated	4208N13	0000000	4208N54	0000000


		1 1/4"	10"	10	Not Rated	Not Rated	4208N14	000000	4208N55	000000

Fully Involute Splined

Handle misalignment and reduce vibration and wear. Curved teeth, similar to those on a gear, make more contact with a bushing than parallel-splined 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.

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



		1 1/4"	10"	14	Not Rated	Not Rated	3976N14	0000000	3976N54	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.	Flat Wd.	Straightness Tolerance	Diameter Tolerance	Hardness	Hardness Rating		Each
Carbon Steel







				1 1/4" Diameter

				12"	5/8"	0.012"/1 ft.	-0.003" to 0"	Rockwell B90	Medium	8632T41	000000


				24"	5/8"	0.012"/1 ft.	-0.003" to 0"	Rockwell B90	Medium	8632T42	00000
				36"	5/8"	0.012"/1 ft.	-0.003" to 0"	Rockwell B90	Medium	8632T43	00000
				48"	5/8"	0.012"/1 ft.	-0.003" to 0"	Rockwell B90	Medium	8632T44	00000