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Dual Shaft NEMA 17 Planetary Gear Stepper Motor for Robot Arm | Single Shaft / Double Shaft Optional
This NEMA 17 planetary gear stepper motor is designed for robotic arm and automation applications. Single shaft and dual shaft versions are available for flexible mechanical integration. Featuring high precision positioning, compact gearbox structure, and multiple reduction ratios, this robot arm stepper motor is ideal for desktop robots, collaborative robots, and 3D printed robotic arm systems.
Dual Shaft Robot Arm Stepper Motor for Precision Automation
This compact robot arm stepper motor integrates a high precision NEMA 17 hybrid stepper motor with a planetary gearbox for stable low-speed high-torque operation.
It is specially designed for robotic arm joints, collaborative robots, desktop automation systems, and educational robotics platforms.
Both single shaft and dual shaft versions are available.
The double shaft design allows encoder installation, manual adjustment, and synchronized transmission structures for advanced robotic motion control systems.
Main Features
- Single shaft or dual shaft optional
- Compact NEMA 17 planetary gearbox structure
- Ideal robot arm stepper motor solution
- High positioning accuracy and repeatability
- Multiple reduction ratios available
- Suitable for 3D printed robotic arms
- Low backlash planetary reducer design
- Compatible with desktop robot arm systems
Motor Technical Specifications
| Parameter | Specification |
|---|---|
| Motor Type | Planetary Gear Stepper Motor |
| Frame Size | NEMA 17 (42×42mm) |
| Step Angle | 1.8° ±5% |
| Phase Number | 2 |
| Rated Voltage | 3.27 VDC |
| Phase Current | 1.68A |
| Holding Torque | 0.45Nm |
| Phase Resistance | 1.95Ω ±10% |
| Phase Inductance | 4.4mH ±20% |
| Insulation Class | Class B |
| Insulation Resistance | 100MΩ min. (500V DC) |
| Ambient Temperature | -20°C to +50°C |
| Motor Weight | Approx. 0.3kg |
Planetary Gear Reduction Ratios
| Reducer Stage | Reduction Ratio | Rated Load | Efficiency | Backlash |
|---|---|---|---|---|
| Level 1 | 3 / 4 / 5 / 10 | 8–10Nm | 96% | <15 arcmin |
| Level 2 | 12 / 16 / 20 / 25 / 35 / 40 / 50 / 70 | 10Nm | 94% | <20 arcmin |
Excitation Sequence and Rotation Direction
| STEP | A+ | B+ | A− | B− |
|---|---|---|---|---|
| 1 | + | + | − | − |
| 2 | − | + | + | − |
| 3 | − | − | + | + |
| 4 | + | − | − | + |
Wiring Diagram
| Wire Color | Function |
|---|---|
| Black | A+ |
| Green | A− |
| Red | B+ |
| Blue | B− |
Applications
- Robot arm joint drive systems
- Desktop robotic automation
- Collaborative robots (Cobots)
- 3D printed robotic arm projects
- Industrial positioning systems
- DIY robot arm development
Customization Options
We support custom gearbox ratios, dual shaft output structures, encoder integration, connector customization, and cable length modification for OEM robot arm applications.
Download Datasheet
Download the full specification sheet for detailed parameters, wiring guide, and performance curves.
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