VRW-D-4 Reaction Wheel
VECTRONIC Aerospace GmbH
High-capacity D-series reaction wheel with 4.0 Nms angular momentum.
Technical specifications
- Dimensions
- 180 mm x 180 mm x 60 mm
- Mass
- 2.5 kg
- Moment of Inertia (rotor)
- 6.37×10⁻³ kgm²
- Mounting Pattern
- 4x M5, 166 mm x 166 mm
- Power Consumption (steady state, no speed)
- <1.3 W
- Power Consumption (steady state, max speed)
- <9.0 W
- Power Consumption (max torque, max speed)
- <65 W
- Input Voltage Range
- 28 VDC to 47 VDC
- Signal Interface
- RS422 / RS485 / CAN
- Connector Type
- MDM-25
- Operating Temperature Range
- -20°C to +70°C
- Storage Temperature Range
- -40°C to +80°C
- Vibration
- 18 g RMS random 3 axis
- Radiation Tolerance
- >20 krad
- Max. Speed
- ± 6000 rpm
- Max. Angular Momentum
- 4.0 Nms
- Max. Torque
- ± 50 mNm
- Speed Control Loop Accuracy (2σ)
- 0.1 rpm
- Unbalance Static/Dynamic
- < 3 gmm / 100 gmm²
About
The VRW-D-4 is a higher-capacity D-series reaction wheel delivering 4.0 Nms of angular momentum for larger small/medium satellite platforms. It uses the same brushless DC motor and 32-bit microprocessor PI-loop speed control architecture as the rest of the VRW family, with four-quadrant PWM drive electronics, torque or speed control modes, RS422/RS485/CAN interfaces, radiation tolerance above 20 krad and in-orbit lifetime exceeding 45,000 hours.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
