Rotary Control Cables | McMaster-Carr

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Maximum Torque @ 12" Bend Radius

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10 in·lbf to 19 in·lbf

20 in·lbf to 49 in·lbf

50 in·lbf to 99 in·lbf

100 in·lbf or greater

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EAR99

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Maximum Rotation Speed

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57 Products

Rotary Mechanical Control Cables


Cable	Steel Cable Core with Plastic Cover

Cable with Plastic Cover and Plain Bearings

Transmit rotary motion to operate valves, throttle controls, and HVAC damper controls. These cables are flexible, so you can weave them around obstructions to manipulate controls from a distance. They have a D-profile shaft on one end for installing a manual control knob and a set screw on the other end for securing to a shaft. Push the male end of the shaft through a panel cutout and secure with locknuts.

Plastic Cable Cover—Cables with a plastic cover protect the core from bending. The cover also helps to prevent injury from the rotating cable.

Plain Bearing—Cables with plain bearings last longer than cables without them because the bearings support the connection between the coupling and core.

	Max. Torque @, in·lbf		Cable				Male Fitting			Female Fitting					Panel Mount
	12" Bend Radius	50" Bend Radius	Outer Dia.	Core Dia.	Overall Lg., ft.	Bend Radius	Shaft Dia.	For Panel Cutout Dia.	Lg.	For Shaft Dia.	Lg.	Fitting Material	Bearing Material	Temp. Range, ° F		Each
Steel Cable Core



		7.5	7.5	—	0.125"	1/2	3"	1/4"	3/8"	1 9/16"	1/4"	13/16"	Zinc-Plated Steel	—	40 to 190	3127K19	000000


		7.5	7.5	—	0.125"	1	3"	1/4"	3/8"	1 9/16"	1/4"	13/16"	Zinc-Plated Steel	—	40 to 190	3127K21	00000
		7.5	7.5	—	0.125"	1 1/2	3"	1/4"	3/8"	1 9/16"	1/4"	13/16"	Zinc-Plated Steel	—	40 to 190	3127K22	00000
		7.5	7.5	—	0.125"	2	3"	1/4"	3/8"	1 9/16"	1/4"	13/16"	Zinc-Plated Steel	—	40 to 190	3127K23	00000
		7.5	7.5	—	0.125"	3	3"	1/4"	3/8"	1 9/16"	1/4"	13/16"	Zinc-Plated Steel	—	40 to 190	3127K24	00000
		24	26	—	0.188"	1	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	5910K76	00000
		24	26	—	0.188"	1 1/2	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	5910K78	000000
		24	26	—	0.188"	2	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	5910K92	000000
		24	26	—	0.188"	3	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	5910K93	000000


		Steel Cable Core with Plastic Cover



				24	26	0.38"	0.188"	1	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	4109N11	000000


				24	26	0.38"	0.188"	1 1/2	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	4109N12	000000
				24	26	0.38"	0.188"	2	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	4109N13	000000
				24	26	0.38"	0.188"	3	4"	1/4"	3/8"	1 9/16"	1/4"	7/8"	Zinc-Plated Steel	—	40 to 190	4109N14	000000


				Steel Cable Core with Plastic Cover and Plain Bearing



						24	26	0.39"	0.188"	3	4"	1/4"	3/8"	2 1/2"	1/4"	2 7/16"	Zinc-Plated Steel	Bronze	40 to 190	5910K62	000000


						24	26	0.39"	0.188"	4	4"	1/4"	3/8"	2 1/2"	1/4"	2 7/16"	Zinc-Plated Steel	Bronze	40 to 190	5910K63	000000
						24	26	0.39"	0.188"	6	4"	1/4"	3/8"	2 1/2"	1/4"	2 7/16"	Zinc-Plated Steel	Bronze	40 to 190	5910K82	000000

Flexible Shafts

Snake these flexible shafts around curves and obstructions to connect shafts over long distances and transmit rotary motion along any path. Because they’re flexible, they can handle any kind of misalignment. Made of steel, they withstand higher speeds than stainless steel shafts. Secure these flexible shafts to other shafts by tightening the set screws on either end.

Plastic Cover—Shafts with a plastic cover protect the core from bending. The cover also helps to prevent injury from the rotating shaft.

Maximum Torque @, in·lbf
12" Bend Radius	50" Bend Radius	Max. Rotation Speed, rpm	Overall Lg., ft.	For Shaft Diameter	Core Dia.	Cover OD	Bend Radius	Fitting Material	Max. Temp., ° F		Each







			Steel

			5.8	7	20,000	1/2	1/4"	5/32"	—	4"	Zinc-Plated Steel	—	3787K11	000000


			5.8	7	20,000	1	1/4"	5/32"	—	4"	Zinc-Plated Steel	—	3787K14	00000
			5.8	7	20,000	2	1/4"	5/32"	—	4"	Zinc-Plated Steel	—	3787K21	00000
			5.8	7	20,000	3	1/4"	5/32"	—	4"	Zinc-Plated Steel	—	3787K24	00000
			8	12	15,000	1/2	1/4"	3/16"	—	4"	Zinc-Plated Steel	—	3787K12	00000
			8	12	15,000	1 1/2	1/4"	3/16"	—	4"	Zinc-Plated Steel	—	3787K18	00000
			8	12	15,000	3	1/4"	3/16"	—	4"	Zinc-Plated Steel	—	3787K25	00000
			16	24	10,000	1/2	1/4"	1/4"	—	5"	Zinc-Plated Steel	—	3787K13	00000
			16	24	10,000	1	1/4"	1/4"	—	5"	Zinc-Plated Steel	—	3787K16	00000
			16	24	10,000	1 1/2	1/4"	1/4"	—	5"	Zinc-Plated Steel	—	3787K19	00000
			16	24	10,000	2	1/4"	1/4"	—	5"	Zinc-Plated Steel	—	3787K23	00000


			16	24	10,000	3	1/4"	1/4"	—	5"	Zinc-Plated Steel	—	3787K26	000000




					Steel with Plastic Cover

					16	24	10,000	1	1/4"	1/4"	1/2"	5"	Zinc-Plated Steel	190	3787K41	00000


					16	24	10,000	1 1/2	1/4"	1/4"	1/2"	5"	Zinc-Plated Steel	190	3787K42	000000
					16	24	10,000	2	1/4"	1/4"	1/2"	5"	Zinc-Plated Steel	190	3787K43	000000
					16	24	10,000	3	1/4"	1/4"	1/2"	5"	Zinc-Plated Steel	190	3787K44	000000

Heavy Duty Flexible Shafts

Bearings between the coupling and the core support the connection to help these flexible shafts last a long time as they join misaligned shafts over long distances. Their flexibility means they can bend around curves and obstructions to transmit rotary motion. Made of steel, they handle higher speeds than stainless steel flexible shafts. Secure them to other shafts by tightening the set screws on both ends.

Plastic Cover—Shafts with a plastic cover protect the core from bending. The cover also helps to prevent injury from the rotating shaft.

	Maximum Torque @, in·lbf
	12" Bend Radius	50" Bend Radius	Max. Rotation Speed, rpm	Overall Lg., ft.	For Shaft Diameter	Core Dia.	Cover OD	Bend Radius	Fitting Material	Bearing Material	Max. Temp., ° F		Each
Plain Sleeve Bearing







				Steel with Plastic Cover

				8	12	6,000	1	1/4"	3/16"	1/2"	4"	Steel	Bronze	190	6426K101	0000000


				8	12	6,000	2	1/4"	3/16"	1/2"	4"	Steel	Bronze	190	6426K102	000000
				8	12	6,000	3	1/4"	3/16"	1/2"	4"	Steel	Bronze	190	6426K62	000000
				8	12	6,000	4	1/4"	3/16"	1/2"	4"	Steel	Bronze	190	6426K104	000000
				16	24	5,000	2	1/4"	1/4"	19/32"	5"	Steel	Bronze	190	6426K112	000000
				16	24	5,000	3	1/4"	1/4"	19/32"	5"	Steel	Bronze	190	6426K63	000000
				16	24	5,000	4	1/4"	1/4"	19/32"	5"	Steel	Bronze	190	6426K64	000000
				52	75	3,600	2	1/2"	3/8"	27/32"	7"	Steel	Bronze	190	6426K122	000000
				52	75	3,600	3	1/2"	3/8"	27/32"	7"	Steel	Bronze	190	6426K66	000000
				52	75	3,600	4	1/2"	3/8"	27/32"	7"	Steel	Bronze	190	6426K67	000000


				Ball Bearing







								Steel with Plastic Cover

								8	12	25,000	1	1/4"	3/16"	1/2"	4"	Steel	Steel	190	6426K201	000000


								8	12	25,000	2	1/4"	3/16"	1/2"	4"	Steel	Steel	190	6426K202	000000
								8	12	25,000	3	1/4"	3/16"	1/2"	4"	Steel	Steel	190	6426K203	000000
								16	24	20,000	3	1/4"	1/4"	19/32"	5"	Steel	Steel	190	6426K83	000000
								16	24	20,000	4	1/4"	1/4"	19/32"	5"	Steel	Steel	190	6426K84	000000
								52	75	15,000	2	1/2"	3/8"	27/32"	7"	Steel	Steel	190	6426K222	000000
								52	75	15,000	3	1/2"	3/8"	27/32"	7"	Steel	Steel	190	6426K86	000000
								52	75	15,000	4	1/2"	3/8"	27/32"	7"	Steel	Steel	190	6426K87	000000
								88	150	10,000	2	1/2"	1/2"	1"	10"	Steel	Steel	190	6426K232	000000
								88	150	10,000	3	1/2"	1/2"	1"	10"	Steel	Steel	190	6426K233	000000
								158	235	8,000	4	1/2"	5/8"	1 3/16"	12"	Steel	Steel	190	6426K94	000000

Corrosion-Resistant Flexible Shafts

Made of stainless steel, these flexible shafts withstand corrosive environments to connect misaligned shafts over long distances. They resist corrosion better than steel shafts. Because these shafts are flexible, they bend around curves and obstructions to transmit rotary motion. Secure them to other shafts by tightening set screws on both ends.

Maximum Torque @, in·lbf
12" Bend Radius	50" Bend Radius	Max. Rotation Speed, rpm	Overall Lg., ft.	For Shaft Diameter	Core Dia.	Bend Radius	Fitting Material		Each







			304 Stainless Steel

			1.9	2.5	200	1/2	1/4"	1/8"	2"	304 Stainless Steel	3135K15	0000000


			1.9	2.5	200	1	1/4"	1/8"	2"	304 Stainless Steel	3135K22	000000
			1.9	2.5	200	1 1/2	1/4"	1/8"	2"	304 Stainless Steel	3135K28	000000




					316 Stainless Steel

					5.8	7	200	1/2	1/4"	5/32"	2 1/2"	316 Stainless Steel	3135K16	000000