CubeSat Reaction Wheels Control System "SatBus 4RW"

CubeSat Attitude Control Systems
CubeSat Reaction Wheels Control System "SatBus 4RW0"

Reaction Wheels System “SatBus 4RW0”

Basic Price € 15000 (Per System) / € 4000 (Per Unit)

NanoAvionics provides reaction/momentum wheels (RW) as a separate components or integral 4 reaction wheels redundant 3-axis control system to enable precision pointing of the small satellite.

Reaction wheels includes DC brushless motors assembled in sealed housing providing no particle emissions and preventing contamination of peripheral devices.

General Features:

  • Interface: SPI / I2C / UART / CAN
  • DC Voltage: 5 V
  • Sealed design – no particles emissions
  • Redundant 4 reaction wheel design or
  • Single reaction wheel as a separate component
  • IPC-A-610 Class 3 assembly
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Single Reaction Wheel Properties

  • Dimensions: 43.5 mm x 43.5 mm x 24 mm
  • Temperature range: -40 °C to +85 °C
  • Mass: 155 g

Single Reaction Wheel Performance

  • Maximum speed: 6500 RPM
  • Maximum torque: 3.2 mNm
  • Maximum momentum storage: 22 mNms
  • Power consumption (Idle):  60 mW
  • Power consumption steady state (600 RPM): 200 mW
  • Power consumption Peak: 3200 mW

4RW System Properties

  • Dimensions: 92.5 mm x 92.5 mm x 51.3 mm
  • Temperature range: -40 °C to +85 °C
  • Mass: 720 g

4RW System Performance

  • Maximum torque:
    • around X axis: 5.9 mNm
    • around Y axis: 5.9 mNm
    • around Z axis: 2.5 mNm (5 mNm when all 4 RWs are used)
  • Maximum momentum storage:
    • around X axis: 40.5 mNms
    • around Y axis: 40.5 mNms
    • around Z axis: 17.2 mNms (34.4 mNm when all 4 RWs are used)
  • Power consumption (Idle):  250 mW
  • Power consumption steady state (600 RPM each): 800 mW
  • Power consumption Peak: 6400 mW