
Overview
The EYOU RHU40H-130 is a harmonic-reducer robot joint actuator for humanoid robots and other listed robotic applications. It combines a built-in driver, 48 VDC rated operation, dual absolute encoders, and EtherCAT/CANopen communication. Select ratio 120 or 160 and either without-brake or with-brake versions. Ratio-dependent output torque, speed, power, and inertia values are provided below for selecting the appropriate configuration.
Features
- Harmonic reducer with a built-in driver.
- Dual absolute encoder: motor side 17 bit and reducer side 19 bit.
- Power (DC in/DC out), CAN FD (In/Out), EtherCAT (In/Out), and STO (1,2) driver interfaces.
- Communication protocols: EtherCAT and CANopen.
- Control modes: Profile Position (PP), Profile Velocity (PV), Profile Torque (PT), Cyclic Synchronous Position (CSP), Cyclic Synchronous Velocity (CSV), etc.
- Selectable brake options: Without Brake or With Brake.
- Anodized, non-sandblasted housing and an outer-ring-blackened reducer.
Specifications
| Parameter | Value |
|---|---|
| Module Model | RHU40H-130 |
| Reducer Type | Harmonic |
| Motor Rated Power (W) | 879 |
| Motor Rated Torque (N·m) | 3.6 |
| Motor Peak Torque (N·m) | 10.8 |
| Reduction Ratio | 120 / 160 |
| Joint Rated Power (W) - Life Constraint | 433 / 475 |
| Rated Torque at 2000 rpm Input (N·m) | 248 / 363 |
| Average Load Torque at Output (N·m) | 448 / 557 |
| Peak Torque at Output (N·m) | 648 / 800 |
| Max Allowable External Torque at Output (Instantaneous) (N·m) | 1458 / 1458 |
| Backlash (arcsec) | ≤20 / ≤20 |
| Rated Speed at Output (rpm) - Life Constraint | 17 / 12.5 |
| Peak Speed at Output (rpm) | 22 / 16.25 |
| Brake (B/N) | B/N |
| Dimensions (Outer Diameter × Axial) (mm) | Φ130 × 136 |
| Weight (kg) (B/N) | 6.15 / 5.82 |
| Hollow Diameter (mm) | 22 |
| Housing Appearance (Process Color) | Anodized (Non-sandblasted) |
| Reducer Appearance (Process Color) | Outer Ring Blackened |
| Radial (dynamic/static) Allowable Load at Output (N) | 2000 |
| Axial (dynamic/static) Allowable Load at Output (N) | 2000 |
| Output Bending Moment (N·m) | 600 |
| Reducer Torsional Stiffness (N·m/rad) | 186000 |
| Reducer Input Inertia (kg·mm²) (B) | 961 / 961 |
| Equivalent Joint Output Inertia (kg·mm²) (B) | 13838400 / 24601600 |
| Rated Operating Voltage (VDC) | 48 |
| Operating Voltage Range (VDC) | 24–48 |
| Driver | Built-in |
| Encoder/Bit (bit) | Dual Absolute / Motor side 17 Bit & Reducer side 19 Bit |
| Driver Interface (see terminal model description) | Power (DC in DC out), CAN FD (In,Out), EtherCAT (In,Out), STO (1,2) |
| Communication Protocol (see communication description) | EtherCAT / CANopen |
| Control Modes | Profile Position (PP), Profile Velocity (PV), Profile Torque (PT), Cyclic Synchronous Position (CSP), Cyclic Synchronous Velocity (CSV), etc. |
| Operating Ambient Temperature (°C) | -20–60 |
| Housing Temperature Rise (°C) | ≤60 |
| Noise (dB) | ≤60 |
| Life (h) | >10000 |
Applications
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
Documents
- EYOU CANable — User Manual (PDF)
- EYOU RHU 40H 130 Drawing — Drawing (PDF)
- EYOU PHU RHU Series Joint CANopen EtherCAT Communication — Manual (PDF)
- EYOU Robot Joint Catalog — Robot Joint Product Catalog (PDF)
- EYOU RP Series EN V1.0 20260608 — User Manual (PDF)
- EYOU UART Debug Module — User Manual (PDF)
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