W45 Reaction Wheel
Bradford Space
Larger-class reaction wheel assembly from Bradford Space's W-series for medium and large satellite platforms.
Key figurescomparable across the catalogue
- Mass
- 6.7 kg
- Power
- 168 W
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Interface
- Analogue or Digital
- Flight heritage
- SOHO, RadarSat, Seastar, Olympus, Integral, XMM, Rosetta, Aeolus, BepiColombo
- Momentum
- 40 Nms
- Maximum Operational Speed
- 4000 RPM
- Number of pulses per revolution
- 240
- Maximum Gross Torque
- 0.265 Nm
- Typical Torque Loss at max. speed
- 0.037 Nm
- Static/dynamic imbalance
- 0.5/5.0 g. cm, g.cm2
- Dimensions
- Ø365×125 mm
- Mass
- 6.70 kg
- 2-channel WDE Dimensions
- 258×181×143 mm
- 2-channel WDE Mass
- 4.67 kg
- Torque rise/fall time
- 80 ms
- Peak Power Consumption at max. torque and speed
- 168 W
- Steady State Consumption at max. constant speed
- 29 W
- Quiescent Power Consumption
- 7.6 W
- Supply voltage
- 28Vdc or 50Vdc
- TM/TC frequency
- up to 10 Hz
- Operating temperature
- -15°C to +60°C
About
The W45 Reaction Wheel Unit is a larger-class member of Bradford Space’s W-series reaction wheel family, sized for medium and large satellite platforms requiring higher angular momentum control range.
All wheels are based on the same proven design maximising available flight heritage, including missions such as SOHO, RadarSat, Seastar, Olympus, Integral, XMM, Rosetta, Aeolus, and BepiColombo. Features analogue or digital interface and accurate wheel speed signal reporting.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.