Reaction Wheel RW150 for Small Satellites

RW150 Features:

  • Integrated wheel drive electronics with latch-up protection
  • Different operation modes for speed and acceleration using model based controllers
  • High torque and speed stability (low noise)
  • Provides extensive housekeepings (e.g.: speed, voltage, current, temperatures)
  • Internal compensation of friction and time delays
  • Low level emitted vibrations, due to the mechanical design and the high level of alignments and balancing


Parameter RW 150 Remark
Angular momentum 1.0 Nms @ nominal speed
Nominal rotation speed 6000 rpm
Nomial reaction torque 0.03 Nm Max. commandable deliverable output torque over the whole speed range
Power interface
Supply voltage 18 to 34 V
Power consumption
≤ 2 W
≤ 5.0 W
≤ 10 W
42 W
Stand by (motor off)
@ 1500 rpm
@ 6000 rpm
Maximum (max. torque/max. speed) 
Mechanical interface
Mass ≤ 1.3 kg
Moment of inertia
1.592x10-3 kg m2
Rotating mass
Dimension 150mm x 150mm x 60mm
Operation -20 °C to +50 °C
Start-up -30 °C to +55 °C
Survival temperature -40 °C to +60 °C
Data interface RS485/RS422
Design lifetime > 7 years In LEO
Storage time > 3 years (incl. 240 h of ground operation)