Model Type 1 Rotary Incremental Actuator
The Moog Type 1 rotary incremental actuator is a compact, closely integrated design made up of two key elements, a stepper motor, and a harmonic drive speed reducer. The motor is a small angle permanent magnet stepper with high holding torque. The harmonic drive speed reducer offers a large reduction ratio, high load capability, low weight, zero backlash and high torsional stiffness. Coaxial nesting of the motor and harmonic drive elements allows use of large, relatively higher capacity output bearings and gives the unit a lower profile geometry.
Key Features:
- Compact and closely integrated design
- Low weight
- Zero backlash
- Optimized for low power consumption
- Small angle permanent magnet stepper provides relatively high holding and running torque
Specifications
| Parameter | Units | Basis | Data |
Output Step Angle |
Degrees | Standard | 0.0375 |
| Steps per Revolution | Steps | Standard | 9600 |
| Max. Output Step Rate | Steps/sec | Maximum | 400 (15) |
| Backlash | Degrees | Maximum | Zero |
| Operating Temperature Range | °C | Maximum | -50 to +80 |
| Torsional Stiffness | lb‐in/Rad | Minimum | 20,000 |
| Bending Stiffness | lb‐in/Rad | Minimum | 75,000 |
| Axial Stiffness | lb/in | Minimum | 500,000 |
| Radial Stiffness | lb/in | Minimum | 500,000 |
| Output Load Capability Axial | lbf | Nominal | 1,080 |
| Tranverse | lbf | Nominal | 1,080 |
| Moment | lb-in | Nominal | 415 |
| Output Torque | lb‐in | Minimum | 70 |
| Unpowered Holding Torque | lb‐in | Minimum | 20 |
| Powered Holding Torque | lb‐in | Minimum | 70 |
| Power | Watts | Maximum | 4.5 |
| Total Assembly Weight | Lb | Maximum | 1.00 |
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