ARW-2 Reaction Wheel
ASPINA
Reaction wheel for ~300 kg class satellites, 2 Nms momentum, 100 mNm torque, 2.25 kg, RS485 interface, 5-year mission life.
Technical specifications
- Momentum (max)
- 2 Nms
- Torque (max)
- 100 mNm
- Mass
- 2.25 kg
- Dimensions
- 138 × 138 × 68 mm
- Power (steady state)
- 12 W @ 7000 RPM
- Supply Voltage
- 24–34 V
- Interface
- RS485
- Operating Temperature
- -20 to +50 °C
- Mission Life
- 5 years
- TRL
- 8
About
The ARW-2 is a reaction wheel for larger small satellite platforms in the ~300 kg class. Delivers 2 Nms maximum momentum with 100 mNm peak torque. Measures 138 × 138 × 68 mm and weighs 2.25 kg. RS485 interface with 24–34V supply. TRL 8; flight heritage June 2026.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
