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NEMA 17 Linear Actuator 1.8° 1.68A 0.45Nm with TR6.35×2 Lead Screw
This NEMA 17 linear actuator integrates a 1.8° stepper motor with a TR6.35×2 lead screw, delivering 0.45Nm holding torque at 1.68A. Designed for compact and precise linear motion, it is ideal for stepper motor linear actuator and screw actuator applications. Standard screw length is 200 mm and can be customized.
NEMA 17 Linear Actuator Overview
This NEMA 17 linear actuator integrates a precision 1.8° stepper motor with a TR6.35×2 lead screw,
converting rotary motion directly into accurate linear displacement.
As a result, it simplifies mechanical design while improving positioning stability.
Because of its compact structure and reliable output performance, this unit is widely used as a
stepper motor linear actuator and screw actuator in automation and precision motion systems.
Motor Electrical & Mechanical Specifications
| Parameter | Value |
|---|---|
| Frame Size | NEMA 17 |
| Step Angle | 1.8° |
| Number of Phases | 2 |
| Rated Voltage | 2.772 VDC |
| Rated Current | 1.68 A |
| Phase Resistance | 1.65 Ω ±10% (20 °C) |
| Phase Inductance | 2.8 mH ±20% |
| Holding Torque | 0.45 Nm |
| Insulation Class | Class B |
| Insulation Resistance | ≥100 MΩ (500 VDC) |
| Ambient Temperature | −20 °C to +50 °C |
| Motor Weight | Approx. 0.4 kg |
Lead Screw Specifications
| Item | Specification |
|---|---|
| Screw Type | Trapezoidal Lead Screw |
| Screw Model | TR6.35×2 |
| Lead | 2 mm / revolution |
| Standard Screw Length | 200 mm |
| Custom Length | Available |
| Nut Material | POM |
Subdivision Settings & Linear Resolution
When driven with microstepping, this NEMA 17 linear actuator achieves smoother motion and higher linear resolution.
Therefore, it is suitable for precision linear drive motor applications.
| Microstepping | Steps / Rev | Linear Resolution |
|---|---|---|
| Full Step | 200 | 0.010 mm |
| 1/8 Step | 1600 | 0.00125 mm |
| 1/16 Step | 3200 | 0.000625 mm |
| 1/32 Step | 6400 | 0.0003125 mm |
Encoder Options
| Encoder Type | Resolution | Output | Application |
|---|---|---|---|
| No Encoder | — | — | Open-loop systems |
| Incremental Encoder | 400 / 1000 PPR | A / B / Z | Closed-loop control |
| Magnetic Encoder | Custom | Digital | Compact feedback systems |
Wiring Diagram
| Wire Color | Phase | Function |
|---|---|---|
| Black | A+ | Phase A positive |
| Green | A− | Phase A negative |
| Red | B+ | Phase B positive |
| Blue | B− | Phase B negative |
Typical Applications
- Automation and inspection equipment
- Laboratory and analytical instruments
- Medical and diagnostic devices
- Compact actuador linear systems
- Precision positioning platforms
Recommended Reading
How to Choose a Lead Screw for Stepper Motor Applications
– Learn how lead, pitch, and efficiency affect linear actuator performance.
Stepper Motor Linear Actuator Design Guide
– Understand design principles behind compact NEMA 17 linear actuator systems.
How to Calculate Linear Resolution of a Stepper Motor
– A practical guide to microstepping, resolution, and positioning accuracy.
Download Datasheet
Download the full specification sheet for detailed parameters, wiring guide, and performance curves.
This stepper motor belongs to our Stepper Motor series, designed for industrial automation applications.
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