Key Specifications
Parameter Specification
Model HF74T
Series HF (Compact Low-Inertia)
Rated Output 400W (0.54HP)
Rated Torque 1.27Nm
Max. Torque 3.82Nm
Rated Speed 3000rpm
Max. Speed 5000rpm
Encoder 17-bit incremental (131,072 p/rev)
Shaft Type Straight keyway shaft
Protection Class IP55 (Shaft side)
Insulation Class Class B
3. Performance Features
✔ Rapid Response:

Low rotor inertia (0.37×10⁻⁴ kg·m²)

High torque-to-inertia ratio

2.5kHz bandwidth capability

✔ Precision Control:

17-bit high-resolution encoder

±0.01° positioning accuracy

Low cogging design

✔ Robust Construction:

IP55 protection against dust/oil

Reinforced bearings

Vibration-resistant design

4. Electrical Characteristics
Parameter Value
Rated Current 2.4A
Max. Current 7.2A
Terminal Resistance 1.6Ω
Inductance 8.5mH
Thermal Time Constant 25 minutes
5. Mechanical Specifications
Parameter Value
Frame Size 60mm
Flange Type Square flange
Shaft Diameter 14mm
Weight 2.8kg
Moment of Inertia 0.37×10⁻⁴ kg·m²
6. Environmental Ratings
Operating Temperature: 0°C to +40°C

Storage Temperature: -20°C to +65°C

Humidity: 20-90% RH (non-condensing)

Vibration Resistance: 5.9m/s² (10-55Hz)

Altitude: ≤1000m