Satellites and subsystems > Attitude > Attitude actuators > Reaction wheels > Reaction Wheel - RW25
Key highlights
The Astrofein Reaction Wheel - RW25 is a nanosatellite wheel with integrated electronics enabling independent operation via digital interface.
Key features
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Last updated: 2026-04-23
Reaction Wheel - RW25
Technical specs
integrated electronics
true
survival temperature
-40 to 65 C
angular momentum storage
30 mN m s
angular speed
5000 rpm
maximum angular speed
5500 rpm
torque
2 mN m
mass
< 200 g
voltage
5 V
steady state power
< 1.5 W
maximum power
< 3 W
moment of inertia
5.9 kg mm^2
data interface
SPI, RS485 (CAN possible)
diameter
50 mm
height
25 mm
lifetime
2 year in low earth orbit (5 years possible by design, but a life time test shall be performed for proof)
operating temperature
-20 to 50 C
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