NEMA 17 Lead Screw Stepping Motor T8×4 – Linear Drive Motor & Screw Actuator

NEMA 17 Lead Screw Stepping Motor 1.8° – T8×4 Linear Screw Actuator, 300mm Travel, Customizable Length

High-precision NEMA 17 lead screw stepping motor with T8×4 trapezoidal screw, 300 mm standard travel and customizable length.Designed for linear drive motor and stepper motor linear actuator applications requiring accurate positioning, stable thrust, and long service life.

Product Overview

This NEMA 17 lead screw stepping motor integrates a precision stepper motor with a T8×4 trapezoidal lead screw, forming a compact and reliable linear drive motor.
It converts rotary motion into accurate linear movement, making it ideal for automation systems, medical devices, laboratory equipment, and industrial screw actuator solutions.

With a standard screw length of 300 mm (custom lengths available), this stepper motor linear actuator delivers smooth motion, high positioning accuracy, and excellent repeatability.

Key Features

1.8° step angle for precise linear positioning
T8×4 trapezoidal lead screw for stable thrust and low backlash
Compact NEMA 17 frame (42 mm)
Customizable lead screw length
Optimized for actuador linear and automation systems

Technical Specifications

Parameter	Value
Frame Size	NEMA 17 (42 mm)
Step Angle	1.8° ±5%
Number of Phases	2 Phase
Rated Voltage	2.2 VDC
Rated Current	2.0 A
Phase Resistance	1.1 Ω ±10% (20°C)
Phase Inductance	2.6 mH ±20%
Holding Torque	0.42 N·m
Insulation Class	Class B
Insulation Resistance	≥100 MΩ (500 VDC)
Operating Temperature	-20°C to +50°C
Ambient Humidity	15% – 95%
Motor Weight	Approx. 0.3 kg
Recommended Driver	2D4020A

Lead Screw Specifications

Item	Specification
Screw Type	Trapezoidal Lead Screw
Model	T8×4
Lead	4 mm
Standard Length	300 mm
Customization	Available upon request

Subdivision (Microstepping) Settings

Microstep	Steps per Revolution	Linear Resolution (T8×4)
Full Step	200	0.020 mm / step
1/2 Step	400	0.010 mm / step
1/4 Step	800	0.005 mm / step
1/8 Step	1600	0.0025 mm / step
1/16 Step	3200	0.00125 mm / step

Encoder (Optional)

Item	Description
Type	Incremental Encoder (Optional)
Function	Position feedback and closed-loop control
Application	High-precision linear actuator systems

Wiring Diagram

Wire Color	Function
Black	A+
Green	A-
Red	B+
Blue	B-

Applications

Linear positioning systems
Automation equipment
Medical and laboratory devices
Industrial screw actuator mechanisms
Precision linear power supplies control platforms

Download Datasheet

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

📄 Download PDF Datasheet

This stepper motor belongs to our

Stepper Motor series, designed for industrial automation applications.

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 through a threaded lead screw.
It is widely used as a linear drive motor or screw actuator in automation, medical equipment, and industrial motion control systems.

What advantages does a T8×4 lead screw offer?

The T8×4 trapezoidal lead screw provides a 4 mm lead per revolution, offering a balanced combination of speed and positioning accuracy.
This design is ideal for actuador linear applications that require stable thrust and smooth linear motion.

Is the lead screw length customizable?

Yes. This lead screw stepping motor comes with a standard 300 mm screw length.
Custom screw lengths are available to meet different stroke requirements and installation constraints.

What is the linear resolution of this stepper motor linear actuator?

With a 1.8° step angle and a T8×4 lead screw, the full-step resolution is 0.020 mm per step.
By using microstepping, the resolution can reach up to 0.00125 mm per step (1/16 step),
making it suitable for high-precision linear drive motor systems.

Can this motor be equipped with an encoder?

Yes. An optional incremental encoder can be integrated to provide position feedback.
This allows closed-loop control and improved accuracy in demanding screw actuator and automation applications.

What applications is this NEMA 17 lead screw stepping motor suitable for?

This motor is commonly used in linear positioning systems, automation equipment, medical and laboratory devices,
industrial screw actuators, and precision motion control platforms including linear power supplies.

What type of driver is recommended?

A bipolar stepper motor driver with microstepping capability is recommended.
Proper current and voltage settings will ensure smooth operation and long service life of the
lead screw stepping motor.

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