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NEMA 23 Planetary Gearbox with Motor 1.26Nm 2.8A Precision Reducer Stepper Motor 1.8 Degree
High precision NEMA 23 planetary gearbox with motor featuring 1.26Nm holding torque, 2.8A current, and 1.8° step angle. This precision planetary gearbox delivers smooth low-speed transmission, high torque output, and excellent positioning accuracy for CNC systems, robotics, indexing tables, automation equipment, and precision motion control applications.
Planetary Gearbox with Motor Overview
This planetary gearbox with motor combines a high torque NEMA 23 stepper motor with a compact precision reducer structure to provide accurate positioning, stable low-speed transmission, and excellent torque multiplication.
The motor features a 1.8° step angle, 2.8A phase current, and 1.26Nm holding torque. In addition, the integrated planetary gear precision gearbox improves transmission efficiency and reduces backlash, making it ideal for automation systems requiring reliable and repeatable motion control.
Therefore, this precision planetary gearbox solution is widely used in CNC machinery, robotic arms, semiconductor equipment, indexing tables, packaging machines, medical automation systems, and industrial positioning devices.
Main Features of the Precision Planetary Gearbox
- High precision planetary gearbox with low backlash structure
- NEMA 23 frame size for industrial automation systems
- 1.26Nm holding torque output
- Integrated gearbox for smooth low-speed operation
- Wide reduction ratio selection for different applications
- Compact structure with high transmission efficiency
- Stable torque output for continuous-duty operation
- Compatible with multiple stepper drivers and motion controllers
- Suitable replacement for precision servo motor applications
Customization Available:
Gear ratio, shaft dimensions, cable length, connector type, mounting structure, encoder installation, and driver package can all be customized according to project requirements.
Gear ratio, shaft dimensions, cable length, connector type, mounting structure, encoder installation, and driver package can all be customized according to project requirements.
NEMA 23 Precision Reducer Motor Specifications
| Parameter | Specification |
|---|---|
| Motor Type | Planetary Gearbox with Motor |
| Frame Size | NEMA 23 / 57mm |
| Step Angle | 1.8° ±5% |
| Number of Phases | 2 Phase |
| Phase Voltage | 2.52 VDC |
| Phase Current | 2.8 A |
| Phase Resistance | 0.9 Ω ±10% (20°C) |
| Phase Inductance | 2.5 mH ±20% |
| Holding Torque | 1.26 N.m |
| Insulation Class | Class B |
| Insulation Resistance | 100 MΩ Min. (500V DC) |
| Ambient Temperature | -20°C to +50°C |
| Humidity | 15% – 95% |
| Motor Weight | Approx. 0.6 Kg |
| Input Voltage | DC24V-36V / VAC24V-36V |
| Recommended Driver | OK2D656T / OK2D872 |
Planetary Gear Precision Gearbox Reduction Ratios
| Reducer Series | Level 1 | Level 2 |
|---|---|---|
| Exact Reduction Ratio | 3 / 4 / 5 / 10 / 15 / 20 | 25 / 30 / 36 / 40 / 50 / 100 |
| Rated Load (N.m) | 30 / 24 / 30 / 20 / 30 / 24 | 30 / 28 / 25 / 25 / 25 / 20 |
| Reducer Length (L-mm) | 53 | 62 / 70 |
| Efficiency | 96% | 92% |
| Backlash (Arcmin) | <15 | <25 |
| Noise | <58 dB | <55 dB |
| Reducer Weight | 0.7 Kg | 0.95 Kg |
Excitation Sequence and Direction of Clockwise Rotation
| STEP | A+ | B+ | A- | B- |
|---|---|---|---|---|
| 1 | + | + | – | – |
| 2 | – | + | + | – |
| 3 | – | – | + | + |
| 4 | + | – | – | + |
Wiring Diagram
| Wire Color | Phase |
|---|---|
| Black | A+ |
| Green | A- |
| Red | B+ |
| Blue | B- |
Applications of the Precision Servo Motor Gearbox System
This precision planetary gearbox motor system is designed for applications requiring smooth low-speed operation, high positioning accuracy, and reliable torque transmission.
- CNC automation systems
- Industrial robotic arms
- Indexing tables
- Medical automation equipment
- Semiconductor machinery
- Conveyor systems
- Packaging machinery
- Precision positioning devices
- Automated inspection systems
Advantages of This Planetary Gearbox with Motor
Compared with conventional gear reduction motors, this planetary gearbox with motor offers higher transmission efficiency, lower backlash, and smoother motion control performance.
Furthermore, the compact gearbox structure improves installation flexibility while maintaining excellent torque density. Therefore, it can replace some traditional precision servo motor systems in medium-load automation applications.
Download Datasheet
Download the full specification sheet for detailed parameters, wiring guide, and performance curves.
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