NEMA 17 Stepper Motor Linear Actuator with Lead Screw

This high-precision stepper motor linear actuator combines a NEMA 17 hybrid stepper motor with a durable lead screw, offering stable thrust, smooth linear drive, and excellent repeatability. It is widely used in linear motion modules, lead screw actuators, laboratory automation, CNC equipment, and compact linear drive motor systems.

Key Features

• Integrated design: lead screw stepper motor / linear stepper motor
• Ultra-smooth linear motion and high positioning accuracy
• Suitable for 12–36 VDC linear drive applications
• Stable performance in long-stroke and constant-load systems

Dimensions

Item	Value
Motor Size	42 × 42 mm (NEMA 17)
Body Length	40 mm
Total Length	110 ±1 mm
Front Mounting	31 ±0.1 mm
Shaft Detail	Ø5 mm × 4.5 mm section

Electrical Parameters

Parameter	Value
Step Angle	1.8° ±5%
Number of Phase	2
Rated Voltage	6.5 VDC
Phase Current	1.0 A
Phase Resistance	6.5 Ω ±10% (20°C)
Phase Inductance	13 mH ±20%
Static Torque	5 Kg·cm
Insulation Class	Class B
Insulation Resistance	100MΩ min (500V DC)
Ambient Temperature	–40°C to +60°C
Ambient Humidity	15% – 95%
Use Voltage	VDC: 12–36V
Recommended Driver	2DM4200A

Lead Screw Details

Lead Screw Type	Specification
Thread Type	Tr8 × 8
Effective Stroke	106 mm
Lead Accuracy	High-precision rolled screw
Nut Type	POM standard lead screw nut

Wiring & Excitation Sequence

Wire Color	Function
BLK	A+
RED	A–
GRN	B+
BLU	B–

Excitation Sequence (Clockwise / CCW)

Step	A+	B+	A–	B–
1	+	+	–	–
2	+	–	–	+
3	–	–	+	+
4	–	+	+	–

Applications

• Linear stages & precision modules
• 3D printer Z-axis linear drive motor
• CNC machinery and automation jigs
• Laboratory dispensing & micro-positioning
• Lead screw actuator systems

FAQ

1. Ball screw vs lead screw — which is better?

Ball screws provide higher efficiency and lower friction, suitable for high-speed and heavy-load systems.
Lead screws (used in this stepper motor linear actuator) are quieter, self-locking, cost-effective, and ideal for compact linear motion.

2. What is a stepper motor with lead screw?

It is a hybrid lead screw stepper motor where the screw is integrated into the rotor, converting rotation directly into linear travel without external couplings.

3. Why do some people call it “Screw Stepper Motor” while others call it “Linear Actuator”?

Both refer to the same concept: a stepper motor that outputs linear movement.
“Screw stepper motor” emphasizes the mechanical structure, while “linear actuator” emphasizes the function.

For more engineering insights, read our blog:

How to find the Linear Stepper Motors in Practical Applications

Download Datasheet

Download the full specification sheet for detailed parameters, wiring guide, and performance curves.

📄 Download PDF Datasheet