Product details
17HS4401 NEMA17 Stepper Motor - 40mm
The 17HS4401 NEMA17 Stepper Motor - 40mm is engineered for smooth and precise movement. This motor is engineered to deliver outstanding performance and dependability. If you are constructing a 3D printer, CNC machine, or any other automation apparatus, this motor is guaranteed to surpass your anticipations.
This NEMA17 stepper motor delivers high torque and low noise. With a maximum Detent torque of 38mN.m, this stepper motor is capable of handling even the most demanding applications. Because of its noiseless functioning, you need not be concerned about disrupting your home or workplace surroundings.
Installing and using the 17HS4401 NEMA17 Stepper Motor is very easy even if you're not an experienced engineer. It is easy to connect to your control board. This motor's streamlined and lightweight construction makes it effortless to incorporate into your project.
Check out : Dual Shaft NEMA 34 CNC Stepper Motor
Features:
• Delivers strong torque of 38 mN.m with quick response.
• Lower resistance helps keep the motor cooler.
• Works in 3D printers, lights, and various machines.
• CE certified and thoroughly tested for quality.
• Runs quietly for a good balance of power and low noise.
Wiring Guide with Diagrams to Interface with Arduino and A4988 Motor Driver
Wiring Guide
1. Power Supply
• A4988 VDD → Arduino 5V
• A4988 GND → Arduino GND
• A4988 VMOT → External Power Supply (+12V or +9V)
• A4988 GND (next to VMOT) → Power Supply Ground
2. Control Pins (Arduino → A4988)
• STEP → Arduino Digital Pin 3
• DIR → Arduino Digital Pin 2
• ENABLE (optional) → Arduino Digital Pin 8 (can be left unconnected for always enabled)
3. Motor Coil Connections
The NEMA17 motor has 4 wires (two coils):
Motor Wire
A4988 Pin
Description
Coil A1
1A
First end of Coil A
Coil A2
1B
Second end of Coil A
Coil B1
2A
First end of Coil B
Coil B2
2B
Second end of Coil B
4. Capacitor
Place a 100 µF capacitor across VMOT and GND near the driver to prevent voltage spikes.
5. Adjusting Current Limit
Use the small potentiometer on the A4988 module to set the current limit for your stepper motor to avoid overheating.
Comparison: 17HS4401 vs 17HS8401S NEMA17 Stepper Motors
Specification
17HS4401 (40mm)
17HS8401S (48mm)
Body Length
40 mm
48 mm
Step Angle
1.8° per step
1.8° per step
Rated Current (per phase)
1.7 A
1.7–2.5 A
Holding Torque
43 N·cm
52 N·cm
Phase Resistance
1.5 Ω ±10%
1.8 Ω
Phase Inductance
2.8 mH ±20%
3.2 mH
Weight
280 g
350 g
Typical Applications
Compact 3D printers, robotics, and small CNC
Larger 3D printers, CNC machines, and high-torque applications
Fit & Mount Compatibility
Standard NEMA17 mount, shorter body for tight spaces
Standard NEMA17 mount, longer body for more torque
Applications:
• Printers
• CNC devices
• 3D printers
• Laser devices
• Manipulators
The 17HS4401 NEMA17 Stepper Motor - 40mm is engineered for smooth and precise movement. This motor is engineered to deliver outstanding performance and dependability. If you are constructing a 3D printer, CNC machine, or any other automation apparatus, this motor is guaranteed to surpass your anticipations.
This NEMA17 stepper motor delivers high torque and low noise. With a maximum Detent torque of 38mN.m, this stepper motor is capable of handling even the most demanding applications. Because of its noiseless functioning, you need not be concerned about disrupting your home or workplace surroundings.
Installing and using the 17HS4401 NEMA17 Stepper Motor is very easy even if you're not an experienced engineer. It is easy to connect to your control board. This motor's streamlined and lightweight construction makes it effortless to incorporate into your project.
Check out : Dual Shaft NEMA 34 CNC Stepper Motor
Features:
• Delivers strong torque of 38 mN.m with quick response.
• Lower resistance helps keep the motor cooler.
• Works in 3D printers, lights, and various machines.
• CE certified and thoroughly tested for quality.
• Runs quietly for a good balance of power and low noise.
Wiring Guide with Diagrams to Interface with Arduino and A4988 Motor Driver
Wiring Guide
1. Power Supply
• A4988 VDD → Arduino 5V
• A4988 GND → Arduino GND
• A4988 VMOT → External Power Supply (+12V or +9V)
• A4988 GND (next to VMOT) → Power Supply Ground
2. Control Pins (Arduino → A4988)
• STEP → Arduino Digital Pin 3
• DIR → Arduino Digital Pin 2
• ENABLE (optional) → Arduino Digital Pin 8 (can be left unconnected for always enabled)
3. Motor Coil Connections
The NEMA17 motor has 4 wires (two coils):
Motor Wire
A4988 Pin
Description
Coil A1
1A
First end of Coil A
Coil A2
1B
Second end of Coil A
Coil B1
2A
First end of Coil B
Coil B2
2B
Second end of Coil B
4. Capacitor
Place a 100 µF capacitor across VMOT and GND near the driver to prevent voltage spikes.
5. Adjusting Current Limit
Use the small potentiometer on the A4988 module to set the current limit for your stepper motor to avoid overheating.
Comparison: 17HS4401 vs 17HS8401S NEMA17 Stepper Motors
Specification
17HS4401 (40mm)
17HS8401S (48mm)
Body Length
40 mm
48 mm
Step Angle
1.8° per step
1.8° per step
Rated Current (per phase)
1.7 A
1.7–2.5 A
Holding Torque
43 N·cm
52 N·cm
Phase Resistance
1.5 Ω ±10%
1.8 Ω
Phase Inductance
2.8 mH ±20%
3.2 mH
Weight
280 g
350 g
Typical Applications
Compact 3D printers, robotics, and small CNC
Larger 3D printers, CNC machines, and high-torque applications
Fit & Mount Compatibility
Standard NEMA17 mount, shorter body for tight spaces
Standard NEMA17 mount, longer body for more torque
Applications:
• Printers
• CNC devices
• 3D printers
• Laser devices
• Manipulators



