NEMA 17 Lead Screw Stepping Motor 1.8° | T8×4 Linear Actuator Motor DC12–36V

NEMA 17 Lead Screw Stepping Motor Overview

This NEMA 17 lead screw stepping motor is a compact and reliable
stepper motor linear actuator designed for precise linear motion control.
It integrates a high-efficiency stepper motor with a T8×4 trapezoidal lead screw,
providing smooth and accurate linear displacement without additional transmission components.

With a holding torque of 0.45 Nm, wide operating voltage
DC 12–36V, and customizable screw length, this linear drive motor is ideal for
automation equipment, medical devices, laboratory instruments, and industrial
actuator linear systems.

Key Features of the Lead Screw Stepping Motor

• Standard NEMA 17 frame (42mm) for easy integration
• Integrated T8×4 lead screw actuator for direct linear motion
• 1.8° step angle for high positioning accuracy
• DC 12–36V wide voltage input compatibility
• Customizable screw length and nut structure
• Low noise, stable thrust, and long service life

Typical Applications

• Linear actuator modules
• 3D printers and CNC linear axes
• Medical and laboratory equipment
• Industrial automation and screw actuator systems
• Precision positioning platforms using linear power supplies

Technical Specifications

Item	Specification
Motor Type	NEMA 17 Lead Screw Stepping Motor
Step Angle	1.8° ±5%
Number of Phases	2 Phase
Rated Voltage	DC 12–36 V
Phase Current	2.0 A
Phase Resistance	1.1 Ω ±10% (20°C)
Phase Inductance	2.6 mH ±20%
Holding Torque	0.45 Nm
Insulation Class	Class B
Insulation Resistance	≥100 MΩ (500V DC)
Ambient Temperature	-20°C to +50°C
Humidity Range	15% – 95%
Motor Weight	Approx. 0.3 kg

Lead Screw Parameters

Item	Specification
Lead Screw Type	Trapezoidal (T Type)
Screw Model	T8 × 4
Lead	4 mm
Screw Diameter	8 mm
Standard Screw Length	306 mm
Custom Length	Available upon request
Nut Material	Brass

Recommended Subdivision Settings

Microstepping	Linear Resolution (T8×4)
Full Step (1)	0.020 mm / step
1/2 Step	0.010 mm / step
1/4 Step	0.005 mm / step
1/8 Step	0.0025 mm / step
1/16 Step	0.00125 mm / step

Encoder Options

Encoder Type	Description
None	Standard open-loop stepping motor
Incremental Encoder	Improves positioning accuracy and motion feedback
Resolution	Optional (e.g. 400 / 600 / 1000 PPR)

Wiring Diagram

Wire Color	Signal
Black	A+
Green	A−
Red	B+
Blue	B−

Frequently Asked Questions – Lead Screw Stepping Motor

What is a lead screw stepping motor?

A lead screw stepping motor is a type of stepper motor linear actuator that converts rotary motion into precise linear movement using an integrated screw actuator.
It eliminates the need for external couplings or belts, offering higher positioning accuracy and compact system design.

What is the advantage of a T8×4 screw actuator?

The T8×4 trapezoidal screw provides a good balance between speed and thrust.
With a 4 mm lead per revolution, this screw actuator is suitable for actuator linear applications that require smooth motion, moderate load capacity, and stable self-locking performance.

Is the screw length customizable?

Yes. This lead screw stepping motor supports customizable screw lengths.
The standard length is 306 mm, but other lengths can be manufactured according to your linear travel requirements.

What voltage and driver are recommended?

The motor operates with DC 12–36V and a rated current of 2.0A per phase.
For optimal performance, a microstepping driver such as TB6600, DM542, or other compatible linear drive motor controllers is recommended.

Can this stepper motor linear actuator be used with an encoder?

Yes. An incremental encoder can be added as an option to improve positioning accuracy and system feedback, making the screw actuator suitable for semi-closed or closed-loop control systems.

What applications is this linear actuator motor suitable for?

This stepper motor linear actuator is widely used in automation equipment, CNC linear axes, medical devices, laboratory instruments, and precision positioning systems powered by stable linear power supplies.

Does the lead screw stepping motor have self-locking capability?

Yes. Due to the trapezoidal screw design, the lead screw stepping motor offers inherent self-locking characteristics when power is off, depending on load conditions and screw lead.