Keyed-Shaft Stepper Motors

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Number of Shafts

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86 Products

Stepper Motors

Motors

Square Body

Image of Attribute. Front orientation. Contains Annotated. Motors.

Image of Attribute. Side1 orientation. Contains Annotated. Motors.

These stepper motors are good for precise, repetitive movements, such as those made by the head of a 3D printer. Similar to the hands of a clock, their shaft turns in small, equal increments. When the shaft stops, it holds its position even when a counteracting force is applied to the load. You can control the position of the load without having to configure encoders or sensors. All are bipolar hybrid stepper motors, so the current can flow in both directions. This helps them deliver higher torque, precision, and efficiency than unipolar stepper motors.

All motors require a controller and drive (not included).

8 Wire Leads—Motors with 8 wire leads can be connected to a drive in two different ways, so you can choose between more speed or more torque. Depending on your application, you could configure the motor for high torque at low speeds or for low torque at high speeds.

Maximum Holding Torque—Holding torque is the force needed to move the shaft out of position when it is stationary. When the shaft is in motion, torque generally decreases as speed increases. Use a torque-speed curve to confirm which motor will work for your application. Click on a part number and select “Product Detail” to view the curve for a motor.

Full Step Increment—Full step increment is the rotation of the shaft from one position to the next. A smaller full step increment means the rotor has more teeth, producing smoother and more precise motion. 1.8° is considered standard.

							Overall			Shaft					Temp. Range, ° F
	Max. Holding Torque, in·ozf	Max. Rotation Speed, rpm	Max. Current per Phase, amp	Full Step Increment	Stepper Motor Polarity	No. of Wire Leads	Lg.	Wd.	Ht.	Dia.	Lg.	Ctr.-to-Base Lg.	Type	No. of Shafts	Min.	Max.		Each
Square Body







				NEMA 34 Frame Size

				467	2,700	7	1.8°	Bipolar	8	3.8"	3.4"	3.4"	1/2"	1 1/4"	1.69"	Keyed	1	0	120	00000000	0000000


				637	2,700	8.6	1.8°	Bipolar	8	4.4"	3.4"	3.4"	1/2"	1 1/4"	1.69"	Keyed	1	0	120	00000000	000000
				1,200	2,700	9.8	1.8°	Bipolar	8	5.9"	3.4"	3.4"	1/2"	1 1/4"	1.69"	Keyed	1	0	120	00000000	000000
				1,700	1,500	10	1.8°	Bipolar	8	7.4"	3.4"	3.4"	5/8"	1 1/4"	1.69"	Keyed	1	0	120	00000000	000000
				2,124.1	360	5	1.8°	Bipolar	4	7.4"	3.4"	3.4"	5/8"	1"	1.7"	Keyed	1	0	120	00000000	000000




						NEMA 42 Frame Size

						3,155.4	225	12	1.8°	Bipolar	8	8.1"	4.3"	4.3"	3/4"	2 1/8"	2.17"	Keyed	1	0	120	00000000	000000


						4,531.5	160	16	1.8°	Bipolar	8	10.1"	4.3"	4.3"	3/4"	2 1/8"	2.17"	Keyed	1	0	120	00000000	000000

Motor/Drives

Image of Attribute. Side1 orientation. Contains Annotated. Motor/Drives.

Reduce the size and complexity of your stepper motor setup—these motors have a drive built in, so you don’t need to run cable to a standalone drive. The drive delivers power to the motor based on signals from a PLC, pulse generator, or other controller. These motors are good for precise, repetitive movements, such as those made by the head of a 3D printer. Similar to the hands of a clock, their shaft turns in small, equal increments for smooth motion. When the shaft stops, it holds its position even when a counteracting force is applied to the load. You can control the position of the load without having to configure encoders or sensors. All are bipolar hybrid stepper motors, so the current can flow in both directions. This helps them deliver higher torque, precision, and efficiency than unipolar stepper motors.

Step Resolution—You can adjust the step resolution down to _1/256 of a full step, which translates to 51,200 microsteps per revolution. Increasing the number of steps directs an even more precise position and reduces the step-step-step motion to mimic a smooth, continuous rotation. The higher the number of step resolution settings, the greater the flexibility you have for determining the size of the motor’s step.

			Current per Phase, amp						Overall			Shaft				Temp. Range, ° F
	Max. Holding Torque, in·ozf	Max. Rotation Speed, rpm	Min.	Max.	Voltage, V DC	Full Step Increment	Step Resolution	Stepper Motor Polarity	Lg.	Wd.	Ht.	Dia.	Lg.	Ctr.-to-Base Lg.	Type	Min.	Max.		Each
Square Body







				NEMA 34 Frame Size

				637	1,500	0.43	4.3	20 to 80	1.8°	1	Bipolar	6.6"	3.5"	3.5"	1/2"	1 3/16"	1.76"	Keyed	0	120	00000000	0000000


				1,200	3,000	0.49	4.9	20 to 80	1.8°	1	Bipolar	8.1"	3.5"	3.5"	1/2"	1 3/16"	1.76"	Keyed	0	120	00000000	000000
				1,700	1,800	0.5	5	20 to 80	1.8°	1	Bipolar	9.6"	3.5"	3.5"	5/8"	1 3/16"	1.76"	Keyed	0	120	00000000	000000

Stepper Gearmotors

Square Body

A stepper motor and gearbox in one, choose these motors when you want high torque but don’t have space for a large motor. Their planetary gearbox efficiently transmits power to increase torque while reducing speed. These motors are great for motion similar to a 3D printer head, using precise, repetitive movements. Like the hands of a clock, their shaft turns in small, equal increments. When the shaft stops, it holds its position, even if there’s a counteracting force on the load. You can control the position of the load without configuring encoders or sensors. All are bipolar hybrid stepper motors, which deliver greater torque, precision, and efficiency than other types of stepper motors.

Holding torque is the force needed to move the shaft out of position when it’s stationary. When the shaft is in motion, torque generally decreases as speed increases. Use a torque-speed curve to confirm which motor will work for your application. Click on a part number and select “Product Detail” to view the curve for a motor.

All motors require a controller and driver (not included).

Full Step Increment—Full step increment is the rotation of the shaft from one position to the next. The smaller the increment, the smoother and more precise the motion.

						Overall			Shaft					Keyway, mm
	Max. Holding Torque, in·ozf	Max. Rotation Speed, rpm	Max. Current per Phase, amp	Full Step Increment	No. of Wire Leads	Lg.	Wd.	Ht.	Dia., mm	Lg., mm	Ctr.-to-Base Lg.	Type	Key Included	Lg.	Wd.	Dp.	Temp. Range, ° F		Each
Square Body







				NEMA 34 Frame Size

				3,058	400	3.5	0.36°	4	8.5"	3.5"	3.5"	22	37.5	1.77"	Keyed	No	30	6	3.5	0 to 120	0000000	0000000


				6,117	200	3.5	0.18°	4	8.5"	3.5"	3.5"	22	37.5	1.77"	Keyed	No	30	6	3.5	0 to 120	0000000	000000
				11,555	100	3.5	0.09°	4	8.5"	3.5"	3.5"	22	37.5	1.77"	Keyed	No	30	6	3.5	0 to 120	0000000	000000
				28,888	40	3.5	0.036°	4	8.5"	3.5"	3.5"	22	37.5	1.77"	Keyed	No	30	6	3.5	0 to 120	0000000	000000

Stepper Motors with Integrated Motion Control

			Current per Phase, amp						Overall			Shaft				Temp. Range, ° F
	Max. Holding Torque, in·ozf	Max. Rotation Speed, rpm	Min.	Max.	Voltage, V DC	Full Step Increment	Step Resolution	No. of Inputs/Outputs	Lg.	Wd.	Ht.	Dia.	Lg.	Ctr.-to-Base Lg.	Type	Min.	Max.		Each
Motor/Controller/Drives







				NEMA 34 Frame Size

				637	1,500	0.43	4.3	20 to 80	1.8°	1/10	2 Digital Inputs, 1 Digital Output	6.6"	3.5"	3.5"	1/2"	1 1/4"	1.76"	Keyed	0	120	00000000	0000000


				1,200	3,000	0.49	4.9	20 to 80	1.8°	1/10	2 Digital Inputs, 1 Digital Output	8.2"	3.5"	3.5"	1/2"	1 1/4"	1.76"	Keyed	0	120	00000000	000000
				1,700	1,800	0.5	5	20 to 80	1.8°	1/10	2 Digital Inputs, 1 Digital Output	9.6"	3.5"	3.5"	5/8"	1 1/4"	1.76"	Keyed	0	120	00000000	000000

DC Servomotors

Often used for small automation applications, such as pick-and-place machines, these servomotors deliver lots of power in a small package. With accurate positioning and fine motor control, they create rotary motion based on signals from a drive (sold separately). The commands for speed and positioning are the same as those used for stepper motors, so you can upgrade your system without the hassle of reprogramming it. As these servomotors move, their encoder relays the shaft’s distance, direction, and speed back to the drive. The drive increases your system’s efficiency by taking the electrical signal from the encoder and dynamically adapting the motor’s movements, also accounting for inconsistent loads and unexpected forces.

Maximum Torque—Torque generally decreases as speed increases. Use a torque-speed curve to confirm which motor will work for your application. Click on a part number and select "Product Detail" to view the curve for a motor.

	Servomotors														Servomotor Encoder Cords		Servomotor Power Cords
									Shaft
	Motor Frame Size	Max. Torque, in·lbf	Continuous Torque, in·lbf	Max. Rotation Speed, rpm	Current, amp	Max. Current, amp	Wattage, W	Voltage, V DC	Dia.	Lg.	No. of Counts per Rev.	Enclosure Rating		Each		Each		Each
Without Brake



		NEMA 23	10	3.1	4,960	2.1	6.6	180	340	3/8"	1.2"	20,000	—	0000000	000000000	00000000	0000000	00000000	0000000


		NEMA 23	18	5.5	4,960	1.8	5.8	320	340	3/8"	1.2"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
		NEMA 23	29.6	8.8	4,960	1.8	5.9	500	340	3/8"	1.2"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
		NEMA 23	38.8	11.8	3,740	1.6	5.3	520	340	3/8"	1.2"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
		NEMA 34	45	12.8	4,960	3.2	10.9	750	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
		NEMA 34	75.9	20.7	4,960	4.1	14.5	1,210	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
		NEMA 34	106.7	27.3	4,960	5.5	21.1	1,600	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
		NEMA 34	129.5	38.3	2,980	5.8	19.2	1,350	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
		40 mm	8.5	2.8	2,900	5.2	15.6	100	24	8 mm	22.5 mm	10,000	IP65	0000000	000000	00000000	000000	00000000	000000
		60 mm	16.8	5.7	3,000	5.2	15.6	200	48	14 mm	27 mm	10,000	IP65	0000000	000000	00000000	000000	00000000	000000
		60 mm	33.6	11.2	2,500	6.9	20.7	400	60	14 mm	27 mm	10,000	IP65	0000000	000000	00000000	000000	00000000	000000


		60 mm	33.6	11.2	3,000	12	36	400	48	14 mm	27 mm	10,000	IP65	0000000	000000	00000000	000000	00000000	000000
		80 mm	61.1	21.2	3,000	22.5	56	750	48	19 mm	37 mm	10,000	IP65	0000000	000000	00000000	000000	00000000	000000


		With Brake



				NEMA 23	10	3.1	4,960	2.1	6.6	180	340	3/8"	1.2"	20,000	—	0000000	00000000	00000000	000000	00000000	000000


				NEMA 23	18	5.5	4,960	1.8	5.8	320	340	3/8"	1.2"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
				NEMA 23	29.6	8.8	4,960	1.8	5.9	500	340	3/8"	1.2"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
				NEMA 23	38.8	11.8	3,740	1.6	5.3	520	340	3/8"	1.2"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
				NEMA 34	45	12.8	4,960	3.2	10.9	750	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
				NEMA 34	75.9	20.7	4,960	4.1	14.5	1,210	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
				NEMA 34	106.7	27.3	4,960	5.5	21.1	1,600	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000
				NEMA 34	129.5	38.3	2,980	5.8	19.2	1,350	340	1/2"	1.1"	20,000	—	0000000	00000000	00000000	000000	00000000	000000

Servomotor Drives

Drives have several control modes that power the motor—step and direction, position, speed, or torque. Use a computer to set motion parameters and calibrate the servomotor to your system. After initial setup, you can use a separate controller, such as a programmable logic controller (PLC), microcontroller, or indexer. A brake resistor protects the drive from regenerated electricity as the motor slows or stops.

						Overall			No. of Inputs/Outputs
	For Motor Frame Size	Communication Protocol	For Max. Motor Torque	Current, amp	Operating Voltage	Lg.	Wd.	Ht.	Digital Inputs	Analog Inputs	Outputs		Each
For 340V DC Motor Voltage



		NEMA 23	Modbus RTU	10 in·lbf to 29.6 in·lbf	2.8	100V AC to 120V AC, 230V AC	6.8"	1.5"	6.7"	—	—	2	0000000	0000000


		NEMA 23, NEMA 34	Modbus RTU	38.8 in·lbf to 75.9 in·lbf	6	230V AC	7.8"	2.3"	6.7"	—	—	2	0000000	00000000
		NEMA 34	Modbus RTU	106.7 in·lbf to 129.5 in·lbf	13	230V AC	7.8"	3.5"	6.7"	—	—	2	000000	00000000


		For 24V, 48V, and 60V DC Motor Voltage



				40 mm, 60 mm, 80 mm	—	8.5 in·lbf to 61.1 in·lbf	12	24V DC to 60V DC	97 mm	41 mm	150 mm	12	2	6	0000000	000000


				40 mm, 60 mm, 80 mm	Modbus RTU	8.5 in·lbf to 61.1 in·lbf	12	24V DC to 60V DC	97 mm	41 mm	150 mm	12	2	6	0000000	000000
				40 mm, 60 mm, 80 mm	Modbus TCP/IP	8.5 in·lbf to 61.1 in·lbf	12	24V DC to 60V DC	97 mm	41 mm	150 mm	12	2	6	0000000	000000
				40 mm, 60 mm, 80 mm	Ethernet/IP	8.5 in·lbf to 61.1 in·lbf	12	24V DC to 60V DC	97 mm	41 mm	150 mm	12	2	6	0000000	000000

DC Servomotors with Integrated Drive

A built-in drive simplifies your servomotor setup, removing the need for cable between the motor and drive. DC servomotors are often used for small automation applications, such as pick-and-place machines, because they deliver lots of power in a small package. This system includes a motor, encoder, and drive for accurate positioning and fine control over speed and position.

These servomotors use the same step and direction commands as a stepper motor, so you can upgrade your current stepper motor system with this system. Use a computer to set up and calibrate the motor to your system. After initial setup, use a separate controller, such as a programmable logic controller (PLC), microcontroller, or indexer. The encoder relays distance, direction, and speed back to the servomotor. Based on this feedback, the servomotor dynamically adapts its movements to increase system efficiency.

	Servomotors															Servomotor Input/Output Cords		Servomotor Power Cords
						Overall			Shaft
	Max. Torque, in·lbf	Continuous Torque, in·lbf	Max. Rotation Speed, rpm	Wattage, W	Voltage, V DC	Lg.	Wd.	Ht.	Dia.	Lg.	No. of Counts per Rev.	Driver Control Mode	Enclosure Rating		Each		Each		Each
NEMA 23 Frame Size



		38.8	7.8	2,520	193	75	5.6"	2.3"	3.2"	3/8"	3/4"	6,400	Step and Direction	IP53	00000000	0000000	00000000	000000	00000000	000000


		51.8	10.4	1,860	213	75	6.4"	2.3"	3.2"	3/8"	3/4"	6,400	Step and Direction	IP53	00000000	000000	00000000	00000	00000000	00000


		NEMA 34 Frame Size



				39.9	9.4	2,320	220	75	4.4"	3.4"	4.3"	1/2"	1 3/16"	6,400	Step and Direction	IP53	00000000	000000	00000000	00000	00000000	00000


				68.4	18.1	1,410	227	75	5.1"	3.4"	4.3"	1/2"	1 3/16"	6,400	Step and Direction	IP53	00000000	000000	00000000	00000	00000000	00000
				87.3	24.5	1,130	267	75	5.9"	3.4"	4.3"	1/2"	1 3/16"	6,400	Step and Direction	IP53	00000000	000000	00000000	00000	00000000	00000
				115.3	30	840	280	75	6.6"	3.4"	4.3"	1/2"	1 3/16"	6,400	Step and Direction	IP53	00000000	000000	00000000	00000	00000000	00000

Servomotor Power Supplies

Power supplies are designed to power servomotors, so they have tightly controlled voltage and high peak current output to support high performance motor control. They are capable of handling or dissipating regenerated energy as the motor slows or stops.

		Overall
For Motor Voltage, V DC	Operating Voltage, V AC	Lg.	Wd.	Ht.	Cord Lg., ft.		Each
75	120	5.2"	2.3"	7.2"	6	0000000	0000000

AC Servomotors

Good for high speeds with fast accelerations, these servomotors are often used in automated assembly, material handling, and packaging applications. These motors require a low amount of force to stop or start, commonly referred to as low inertia, so they respond to position commands quickly and can rapidly accelerate and decelerate.

Pair a servomotor and drive (sold separately) for accurate speed and position control. The absolute encoder built into the motor knows the exact position of the shaft at startup and relays distance, direction, and speed back to the drive. Based on this feedback, the drive dynamically adapts the motor’s movements and increases system efficiency. A brake resistor protects the drive from regenerated electricity as the motor slows or stops.

	Servomotors															Servomotor Power and Encoder Cords
									Shaft, mm
	Motor Frame Size	Max. Torque, in·lbf	Continuous Torque, in·lbf	Max. Rotation Speed, rpm	Current, amp	Max. Current, amp	Power, hp	Wattage, W	Dia.	Lg.	Ctr.-to-Base Lg.	No. of Counts per Rev.	Enclosure Rating		Each		Each
230V AC, Three Phase



		73 mm	35.5	10.7	4,500	2.29	13.8	1/2	400	11	23	36.5	4,096	IP65	00000000	000000000	00000000	0000000


		73 mm	65.5	17.7	4,500	4.03	24	1	680	11	23	36.5	4,096	IP65	00000000	00000000	00000000	000000
		88 mm	80	22.2	4,500	5.25	31.5	1	850	14	30	44	4,096	IP65	00000000	00000000	00000000	000000
		88 mm	132.7	39.2	4,500	9.78	59	2	1,500	14	30	44	4,096	IP65	00000000	00000000	00000000	000000


		400V AC, Three Phase



				73 mm	35.9	10.7	4,500	1.32	7	1/2	400	11	23	36.5	4,096	IP65	00000000	00000000	00000000	000000


				73 mm	67.3	17.7	4,500	2.3	13.1	1	680	11	23	36.5	4,096	IP65	00000000	00000000	00000000	000000
				88 mm	87.4	22.2	4,500	3.05	18.3	1	850	14	30	44	4,096	IP65	00000000	00000000	00000000	000000
				88 mm	138.9	39.2	4,500	5.4	32.5	2	1,500	14	30	44	4,096	IP65	00000000	00000000	00000000	000000
				116 mm	156.6	51.9	3,000	4.9	25	2	1,800	24	50	58	4,096	IP65	00000000	00000000	00000000	000000
				116 mm	218.6	72.7	3,000	7.5	39	3 1/2	2,600	24	50	58	4,096	IP65	00000000	00000000	00000000	000000

Accessories for Servomotors

Servomotor Drives


Drive	Keypad

Drives can be quickly set up and programmed to control position, speed, and torque from a computer or programmable logic controller (PLC). These drives only require one cord to connect to the motor and encoder. Once connected, the drive recognizes the motor and automatically begins startup. Use the keypad to start the motor, run diagnostics, and edit motion parameters directly from the drive. Drives also include safe torque off (STO) functionality, which prevents power from going to the motor during an emergency stop or maintenance.

						Overall, mm			No. of Inputs/Outputs
	Communication Protocol	For Max. Motor Torque	Current, amp	Operating Voltage, V AC	Electrical Phase	Lg.	Wd.	Ht.	Digital Inputs	Digital Inputs/Outputs	Analog Inputs	Analog Inputs/Outputs	Enclosure Rating		Each
For 230V AC Motor Voltage



		Modbus TCP/IP, Ethernet/IP	35.5 in·lbf	5	200 to 240	Three	170	80	303	6	2	1	1	IP20	00000000	000000000


		Modbus TCP/IP, Ethernet/IP	65.5 in·lbf	8.4	200 to 240	Three	180	80	392	6	2	1	1	IP20	00000000	00000000
		Modbus TCP/IP, Ethernet/IP	80 in·lbf	12.6	200 to 240	Three	180	80	392	6	2	1	1	IP20	00000000	00000000
		Modbus TCP/IP, Ethernet/IP	132.7 in·lbf	19.2	200 to 240	Three	225	105	445	6	2	1	1	IP20	00000000	00000000


		For 400V AC Motor Voltage



				Modbus TCP/IP, Ethernet/IP	35.9 in·lbf	2.9	380 to 500	Three	170	80	303	6	2	1	1	IP20	00000000	00000000


				Modbus TCP/IP, Ethernet/IP	67.3 in·lbf	5	380 to 500	Three	170	80	303	6	2	1	1	IP20	00000000	00000000
				Modbus TCP/IP, Ethernet/IP	87.4 in·lbf	8.6	380 to 500	Three	180	80	392	6	2	1	1	IP20	00000000	00000000
				Modbus TCP/IP, Ethernet/IP	138.9 in·lbf to 156.6 in·lbf	11.3	380 to 500	Three	180	80	392	6	2	1	1	IP20	00000000	00000000
				Modbus TCP/IP, Ethernet/IP	218.6 in·lbf	14.4	380 to 500	Three	180	80	392	6	2	1	1	IP20	00000000	00000000

Servomotor Gear Boxes

Gear boxes reduce the speed and increase the torque output of your motor. These planetary gear boxes have low backlash, which allows them to maintain a high-level of precision when transmitting motion from your servomotor. They also have hardened steel gears that withstand fast accelerations in dynamic applications. They come permanently lubricated, so there is no need to add or maintain oil or grease.

		Output						Output Shaft, mm		Overall, mm
	For Motor Frame Size	Max. Torque, in·lbf	Continuous Torque, in·lbf	Max. Speed, rpm	Max. Input Speed, rpm	Backlash Angle	For Input Shaft Dia., mm	Dia.	Lg.	Lg.	Wd.	Ht.		Each
5:1 Speed Ratio



		73 mm	584.1	247.8	1,500	7,500	0.067°	11	16	28	141.6	73	73	00000000	000000000


		88 mm	584.1	247.8	1,500	7,500	0.067°	14	16	28	144.5	88	88	00000000	00000000
		116 mm	1,221.4	752.3	1,500	7,500	0.067°	24	22	36	183.8	120	120	00000000	00000000


		10:1 Speed Ratio



				73 mm	371.7	247.8	750	7,500	0.067°	11	16	28	141.6	73	73	00000000	00000000


				88 mm	371.7	247.8	750	7,500	0.067°	14	16	28	144.5	88	88	00000000	00000000
				116 mm	1,053.2	752.3	750	7,500	0.067°	24	22	36	183.8	120	120	00000000	00000000