Overview
The MyActuator RH-14 Hollow Harmonic Motor integrates a compact harmonic drive reducer with a high-precision servo motor, delivering 11Nm rated torque, 28Nm peak torque, and 25RPM rated speed under 48V input. Featuring a 100:1 gear ratio, dual 17-bit encoders, and support for CAN BUS and EtherCAT communication, it ensures exceptional control accuracy for advanced robotics and automation applications.
Key Features
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High Torque & Stability – 11Nm continuous torque and up to 28Nm peak torque ensure stable power for demanding applications.
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High Precision – Dual 17-bit ABS encoders deliver repeat position accuracy of <0.01°.
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Low Noise & Smooth Operation – Optimized design provides low vibration and noise for sensitive environments.
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Integrated Hollow Shaft – Enables easy cable routing and multi-functional mechanical integration.
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Robust Build – Supports radial load up to 8.6KN and axial load up to 58.7KN.
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Flexible Communication – Compatible with both CAN BUS and EtherCAT protocols for seamless integration.
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Compact Design – Dimensions 120mm x 120mm x 80mm, weight only 0.78kg, making it ideal for compact systems.
Technical Specifications
| Parameter | Unit | RH-14 |
|---|---|---|
| Gear Ratio | – | 100 |
| Input Voltage | V | 48 |
| No Load Speed | RPM | 30 |
| No Load Current | A | 0.4 |
| Rated Speed | RPM | 25 |
| Rated Torque | N·m | 11 |
| Rated Power | W | 28 |
| Rated Current | A (rms) | 2.8 |
| Peak Torque | N·m | 28 |
| Peak Current | A (rms) | 5.7 |
| Motor Back-EMF Constant | Vdc/Krpm | 19.2 |
| Module Torque Constant | N·m/A | 4 |
| Motor Phase Resistance | Ω | 0.62 |
| Motor Phase Inductance | mH | 0.43 |
| Pole Pair | – | 10 |
| 3-Phase Connection | – | Y |
| Backlash | Arcsec | <40 |
| Radial Load (Static/Dynamic) | KN | 8.6 / 5.8 |
| Axial Load (Static/Dynamic) | KN | 58.7 / 16.2 |
| Inertia (N/B) | kg·m² | 0.29 / – |
| Encoder Type | – | Dual ABS-17BIT (Input & Output) |
| Repeat Position Accuracy | Degree | <0.01 |
| Communication | – | CAN BUS & EtherCAT |
| Weight | Kg | 0.78 |
| Insulation Grade | – | F |
Interface & Connectivity
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EtherCAT Ports: IN/OUT for high-speed communication.
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CAN_H / CAN_L: Network data communication terminals.
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Power Supply: VCC (Positive) & GND (Negative) terminals.
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Battery Ports: Memory battery connectors (BAT+ / BAT-).
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Signal Ports: T+, T-, R+, R- for master-station data exchange.
Package List
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Power Supply Cable ×2
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CAN BUS Communication Cable ×2 / Multi-turn Battery Cable ×1
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120Ω Terminal Resistance ×1
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EtherCAT Communication Cable ×2
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CAN BUS Communication Module ×1 (includes free USB-CAN adapter)
Applications
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Robotic Arms – High precision and hollow shaft for internal cable routing in industrial robots.
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Laser Cutters – Smooth and stable motion for automated manufacturing lines.
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Medical Instruments – Low noise and high accuracy for sensitive environments.
Advantages
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Integrated design simplifies installation and reduces development time.
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High load capacity and excellent repeatability for demanding industrial tasks.
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Supports multiple communication interfaces for versatile system integration.
Details

The MyActuator RH-14 motor has a dual encoder, CAN BUS and EtherCAT communication, a 100 gear ratio, 11 N.m torque, 28 W power, and provides speed and stall torque data for different loads.

Interface details: EtherCAT, CAN bus, power, and battery connections. Packaging: power/communication cables, terminal resistance, CAN module. Dimensions: 120×120×80mm. USB-CAN adapter included.

RH-14 accessories include power supply, CAN BUS, EtherCAT cables, 120Ω resistance, and CAN module. Connectors and wire functions are labeled. USB-CAN adapter included free with order; extra units available upon request.

RH Series-Standard Type integrated harmonic module offers stable low-speed performance, low noise, high precision, strong load capacity, precise control, and easy operation.

Hollow Shaft Motor RH Series offers integrated design, vibration resistance, time-saving development. EPS-RH-14-100-C-B specifies brand, motor type, reducer, gear ratio, communication, brake. Used in robotic arms, laser cutters, medical instruments.

MyActuator RH-14-100 motor, 100W, 11Nm, 250rpm, 48V, silver metallic body, black connector, precision engineering design.


MyActuator MT-RH-14-100-N motor with CAN bus interface and LED indicator
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