W45E Reaction Wheel
Bradford Space
Extended-capacity W45-series reaction wheel for large satellite platforms requiring maximum momentum storage.
Key figurescomparable across the catalogue
- Mass
- 7.45 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
- Product line
- W-series Reaction Wheel Unit
- Momentum
- 45 Nms
- Maximum Operational Speed
- 4000 RPM
- Number of pulses per revolution
- 240
- Maximum Gross Torque
- 0.248 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
- 7.45 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
- Frequency
- up to 10 Hz
- Operating temperature
- -15°C to +60°C
About
The W45E is an extended-capacity variant of Bradford Space’s W45 Reaction Wheel Unit, offering the highest angular momentum storage in the W-series line for large satellite platforms and demanding attitude control missions.
Based on the same proven RWA design as the rest of the W-series, maximising available heritage database. High torque level over full speed range with fixed torque rise time for precise, repeatable control.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.