Satellites and subsystems > Attitude > Attitude actuators > Reaction wheels > RSI 12-75/60
Key highlights
RSI 12 momentum and reaction wheels 4 – 12 nms with integrated wheel drive electronics. Its key features are: power/loss torque optimized, volume/mass optimized, hermetically sealed, modular configuration, broad spectrum of different wheel types, for satellites weighing 200 – 1,000 kg and high reliability through heritage.
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Last updated: 2023-05-18
RSI 12-75/60
Technical specs
angular momentum storage
12 N m s
torque
75 mN m
operating temperature
-20 to 70 C
survival temperature
-40 to 75 C
mass
< 4.85 kg
height
85 mm
diameter
247 mm
angular speed
-6000 to 6000 rpm
maximum angular speed
< 7500 rpm
peak power
< 90 W
steady state power
< 20 W
voltage
24 to 51 V
current
< 3.75 A
lifetime
> 15 yr
integrated electronics
true
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