7/8" Axles | McMaster-Carr

Filter by

System of Measurement

Length

End Type

Material

Mechanical Finish

Edge Type

Keyway Width

Keyway Length

For Motion

Hardness Rating

Hardness

Finish

Shaft Type

Tolerance Rating

Steel Grade

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

RoHS

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Compliant

Exempt

Straightness Tolerance Rating

Standard

Number of Splines

Keyway Depth

Spline Type

Finish Hardness

41 Products

Shaft Type

Round

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

22 products

Keyed

Match with a machine key to prevent slipping while transmitting torque

22 products

Shaft Type

Splined

Evenly spaced teeth transmit heavy rotational loads

2 products

Performance

Corrosion Resistant

Won't rust when exposed to moisture or mild chemicals

5 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.

Black-Oxide Carbon Steel—Typically chosen for their appearance, these shafts have a dark, matte coating for a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

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.

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







				7/8" Diameter

				12"	0.012"/1 ft.	-0.003" to 0"	Rockwell C25	Hard	—	—	1346K515	000000


				18"	0.012"/1 ft.	-0.003" to 0"	Rockwell C25	Hard	—	—	1346K516	00000
				24"	0.012"/1 ft.	-0.003" to 0"	Rockwell C25	Hard	—	—	1346K517	00000
				36"	0.012"/1 ft.	-0.003" to 0"	Rockwell C25	Hard	—	—	1346K518	00000
				60"	0.012"/1 ft.	-0.003" to 0"	Rockwell C25	Hard	—	—	1346K519	000000
				72"	0.012"/1 ft.	-0.003" to 0"	Rockwell C25	Hard	—	—	1346K521	000000


				Black-Oxide Carbon Steel







								7/8" Diameter

								12"	0.0125"/1 ft.	-0.001" to 0"	Rockwell C20	Hard	Rockwell C19	Medium	1886K51	00000


								18"	0.0125"/1 ft.	-0.001" to 0"	Rockwell C20	Hard	Rockwell C19	Medium	1886K52	00000
								24"	0.0125"/1 ft.	-0.001" to 0"	Rockwell C20	Hard	Rockwell C19	Medium	1886K53	00000
								36"	0.0125"/1 ft.	-0.001" to 0"	Rockwell C20	Hard	Rockwell C19	Medium	1886K54	00000
								48"	0.0125"/1 ft.	-0.001" to 0"	Rockwell C20	Hard	Rockwell C19	Medium	1886K55	00000
								60"	0.0125"/1 ft.	-0.001" to 0"	Rockwell C20	Hard	Rockwell C19	Medium	1886K56	00000


								Chrome-Plated Carbon Steel







												7/8" Diameter

												12"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K16	00000


												18"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K28	00000
												24"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K41	00000
												36"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K53	00000
												48"	0.0125"/1 ft.	-0.001" to 0"	Brinell 203	Medium	Rockwell C68	Ultra Hard	5947K65	00000

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







				7/8" Diameter

				3"	3"	3/16"	3/32"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T71	000000


				3"	3"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K135	00000
				6"	6"	3/16"	3/32"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T72	00000
				6"	6"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K136	00000
				9"	9"	3/16"	3/32"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T73	00000
				9"	9"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K137	00000
				12"	12"	3/16"	3/32"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T74	00000
				12"	12"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K181	00000
				18"	18"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K958	00000
				24"	24"	3/16"	3/32"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T75	00000
				24"	24"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K81	00000


				36"	36"	3/16"	3/32"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T76	000000
				36"	36"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K82	00000
				48"	48"	3/16"	3/32"	No	0.003"/1 ft.	-0.001" to 0"	Rockwell C14	Medium	Material Certificate	Paper	8488T77	000000
				48"	48"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K83	00000
				60"	60"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K84	00000
				72"	72"	3/16"	3/32"	No	0.013"/1 ft.	-0.0025" to 0"	Rockwell B95	Medium	—	—	1497K85	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.

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







				7/8" Diameter

				24"	4", 14"	3/16", 3/16"	3/32", 3/32"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K148	000000


				36"	4", 14"	3/16", 3/16"	3/32", 3/32"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K149	000000
				48"	4", 14"	3/16", 3/16"	3/32", 3/32"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K151	000000
				60"	4", 14"	3/16", 3/16"	3/32", 3/32"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K152	000000
				72"	4", 14"	3/16", 3/16"	3/32", 3/32"	One 2" Long Key, One 4" Long Key	0.003"/1 ft.	-0.002" to 0"	Brinell 190	Medium	6117K153	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 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



		7/8"	6"	13	Not Rated	Not Rated	3976N12	0000000	3976N52	0000000