VRW-C-1 Reaction Wheel
VECTRONIC Aerospace GmbH
Mid-capacity reaction wheel with 1.2 Nms angular momentum for small/medium satellites.
Technical specifications
- Dimensions
- 96 mm x 96 mm x 52 mm
- Mass
- 2.3 kg
- Moment of Inertia (rotor)
- 1.94×10⁻³ kgm²
- Mounting Pattern
- 4x M5, 85 mm x 85 mm
- Power Consumption (steady state, no speed)
- <1.1 W
- Power Consumption (steady state, max speed)
- <4.5 W
- Power Consumption (max torque, max speed)
- <45 W
- Input Voltage Range
- 9 VDC to 36 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
- 16 g rms random 3 axis
- Radiation Tolerance
- >20 krad
- Max. Speed
- ± 6000 rpm
- Max. Angular Momentum
- 1.2 Nms
- Max. Torque
- ± 20 mNm
- Speed Control Loop Accuracy (2σ)
- 0.1 rpm
- Unbalance Static/Dynamic
- < 1 gmm / 80 gmm²
About
The VRW-C-1 is a mid-range member of VECTRONIC Aerospace’s VRW-series reaction wheel family, providing 1.2 Nms of angular momentum for attitude control of small and medium satellites. Like all VRW wheels it uses a brushless DC motor with a PI-loop speed controller on a 32-bit microprocessor and a low-noise four-quadrant PWM drive, supporting torque or speed control over RS422/RS485/CAN. It is qualified for a nominal in-orbit lifetime above 45,000 hours and radiation tolerance greater than 20 krad.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
