W18E Reaction Wheel
Bradford Space
Extended-capacity variant of the W18 reaction wheel assembly for small and medium satellite attitude control.
Key figurescomparable across the catalogue
- Mass
- 5.56 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
- 22 Nms
- Maximum Operational Speed
- 4000 RPM
- Number of pulses per revolution
- 240
- 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
- Ø295×125 mm
- Mass
- 5.65 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
- Data interface
- MIL-STD-1553B or analogue
- TM/TC frequency
- up to 10 Hz
- Operational temperature
- -15°C to +60°C
About
The W18E is an extended-capacity variant of Bradford Space’s W18 Reaction Wheel Unit family, providing higher angular momentum storage for satellite attitude control applications requiring additional control authority.
All wheels in the W-series are based on the same proven design, maximising the available heritage database. Features include high torque level over the full speed range, fixed torque rise time, analogue or digital interface, and accurate wheel speed signal.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.