VRW-B-02 Reaction Wheel
VECTRONIC Aerospace GmbH
Compact low-momentum reaction wheel for small satellites, 0.2 Nms angular momentum.
Typed specifications32 values
Discloses 8 of 10 fields engineers filter by in this category (category median 5).
- Mass
- 1 000 g datasheet p.2
- Envelope (L×W×H)
- 70 mm x 70 mm x 48 mm datasheet p.2
- Angular momentum storage
- 0.2 N·m·s nominal · datasheet p.2 0.2 N·m·s nom.
- Max torque
- 20 mN·m max · +/- 20 mNm · datasheet p.1
- Speed range
- -6 000–6 000 rpm max. speed +/- 6000 rpm · datasheet p.1
- Supply voltage
- 9–36 V as published, mode unspecified · vendor page (catalogue a
- Power consumption
- 4.5 W max · steady state, max. speed · datasheet p.2 45 W max · max. speed, max. torque | 45 W max · max. speed, max. torque (<45 W) | 4.5 W max · steady state, max. speed (<4.5 W) | 1.1 W max · steady state, no speed +1
- Data interface
- RS-422 datasheet p.2 RS-485 | CAN
- Operating temperature
- -20–70 °C as published, mode unspecified · vendor page (catalogue a
- Radiation tolerance (TID)
- 20 krad as published, mode unspecified · vendor page (catalogue a
- Design lifetime
- 5.1 years nominal in-orbit · datasheet p.2 5.1 years nominal in-orbit (converted from hours) | 5.1 years nom. · in-orbit (converted from hours)
- Wheels in the unit
- 1 datasheet p.1
- Peak power
- 45 W max · max. speed, max. torque (<45 W) · datasheet p.1
- Static imbalance
- 1 g·cm max · datasheet p.2 0.1 g·cm max · printed as < 1 gmm
- Dynamic imbalance
- 80 g·cm² max · datasheet p.2 0.8 g·cm² max · printed as 80 gmm2
- Flight heritage
- 100 years of in-orbit flight experience datasheet p.2
- Drive electronics
- integrated datasheet p.0
- Flywheel moment of inertia
- 0 kg·m² 3.4*10-4 kgm2 (rotor) · datasheet p.1
- Control modes
- speed datasheet p.1 torque
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier14 lines, in the manufacturer's own wording
- Dimensions
- 70 mm x 70 mm x 48 mm
- Mass
- 1.0 kg
- Max. angular momentum
- 0.2 Nms
- Max. torque
- ± 20 mNm
- Max. speed
- ± 6000 rpm
- Input voltage range
- 9 VDC to 36 VDC
- Power consumption (steady state, max speed)
- <4.5 W
- Power consumption (max torque, max speed)
- <45 W
- Operating temperature range
- -20°C to +70°C
- Signal interface
- RS422 / RS485 / CAN
- Moment of inertia (rotor)
- 3.4×10⁻⁴ kgm²
- Speed control loop accuracy (2σ)
- 0.1 rpm
- Unbalance static/dynamic
- < 1 gmm / 80 gmm²
- Radiation tolerance
- >20 krad
About
The VRW-B-02 is the smallest member of VECTRONIC Aerospace’s VRW-series reaction wheel family, designed as an actuator that influences spacecraft rotational motion through angular momentum exchange. It is built around a brushless DC motor, rotor, wheel drive electronics and housing, with speed control implemented via a model-supported PI loop running on a 32-bit microprocessor and a low-noise, high-efficiency four-quadrant PWM drive. The wheel supports both torque control and speed control modes over RS422/RS485/CAN interfaces and offers a nominal in-orbit lifetime exceeding 45,000 hours, with radiation tolerance above 20 krad for LEO small-satellite missions.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.