NAxis HHD Actuators
An all-in-one, high-performance robotic joint module featuring a BLDC Motor, Hat Type Strain Wave Gearbox, and integrated Motor Driver, specifically designed to handle high static and dynamic loads at the output through its integrated cross-roller bearings. Engineered for seamless integration and ease of use, simply connect it to the NLink Adapter via Controller Area Network (CAN) Bus connection and leverage our Software SDK to precisely control and command its movements according to your needs.

Models and Specifications
| NA-HHD-17-50 | NA-HHD-17-100 | NA-HHD-20-50 | NA-HHD-20-100 | NA-HHD-25-50 | NA-HHD-25-100 | |
| Voltage / V | 48 | |||||
| Gear Ratio | 50 | 100 | 50 | 100 | 50 | 100 |
| Rated Torque / Nm | 24 | 46 | 34 | 58 | 65 | 126 |
| Speed at Rated Torque / RPM | 60 | 30 | 60 | 30 | 60 | 30 |
| Peak Torque / Nm | 40 | 63 | 66 | 97 | 114 | 184 |
| Peak Speed / RPM | 90 | 45 | 90 | 45 | 85 | 42 |
| Rated Current / A | 6.5 | 6.2 | 8.0 | 6.7 | 12.8 | 12.4 |
| Peak Current / A | 10.8 | 8.5 | 15.3 | 11.3 | 22.4 | 18.1 |
| Weight / kg | 1.3 | 1.6 | 2.6 | |||
| Output Load Specifications | 9.8kN Dynamic Load 13.5kN Static Load [Cross-Roller Bearing] | 18.5kN Dynamic Load 25.6kN Static Load [Cross-Roller Bearing] | 21.8kN Dynamic Load 35.8kN Static Load [Cross-Roller Bearing] | |||
| Sensors | 2 x 16-bit Absolute Encoder on the output and motor side 1 x Motor Thermistor | |||||
| Communication | CAN 2.0B upto 1Mbps / CANFD upto 8Mbps | |||||
Drawing



All dimensions are in mm
| NA-HHD-17-XXX | NA-HHD-20-XXX | NA-HHD-25-XXX | |
| L | 82.4 | 83 | 93.4 |
| L1 | 15.8 | 16 | 19.5 |
| L2 | 30.4 | 32.5 | 37.7 |
| L3 | 43.7 | 47.5 | 53.7 |
| D1 | 80 | 90 | 110 |
| D2 | 63 | 73 | 88 |
| D3 | 70 | 75 | 95 |
| ID | 11 | 9 | 19 |
| OD | 84 | 94 | 114 |
| Hollow Shaft Dia | 11 | 9 | 19 |
| Rotor | 16 x M3 (6 mm Depth) (Post 14.4 mm Through Hole) Tapped Holes PCD Ø 54 | 12 x M3 (6 mm Depth) (Post 15 mm Through Hole) Tapped Holes PCD Ø 62 | 12 x M4 (6 mm Depth) (Post 17.2 mm Through Hole) Tapped Holes PCD Ø 77 |
| Stator Front | 8 x M3 (6 mm Depth) (Post 19mm Through Hole) Tapped Holes PCD Ø 74 | 8 x M3 (6 mm Depth) (Post 20.5mm Through Hole) Tapped Holes PCD Ø 84 | 8 x M4 (8 mm Depth) (Post 22mm Through Hole) Tapped Holes PCD Ø 102 |
| Stator Back | 12 x M3 (6 mm Depth) Tapped Holes PCD Ø 74 | 12 x M3 (6 mm Depth) Tapped Holes PCD Ø 84 | 12 x M4 (8 mm Depth) Tapped Holes PCD Ø 102 |
Customisation and Actuator Development
We can also provide Custom Actuators based on your requirements such as,
- Load and Speed
- Hollow Shaft
- Dual Side Mounting
- Additional Sensor Integration
- Weight and Size Optimisation
- Compatible Fixtures and Couplings
These customisations can be done at a reasonable cost. Our team of experts will help you to achieve your objectives within the constraints of your application. Please contact us to initiate a consultation.