Satellites and subsystems > Attitude > Attitude actuators > Reaction wheels > RW-1Nms
Key highlights
The RW-1Nms is a high-reliability reaction wheel designed for imaging satellites, providing exceptional stability and precise control with minimal disturbance torques. It offers minimal momentum error, high torque output for rapid manoeuvres, and maximum momentum capacity, all in a compact design, and includes a comprehensive set of protection features.
Angular Momentum: 1.0 Nms @28.5 V
Torque: ±39 mNm (±74 mNm)*
Control Modes: Current, Speed & Torque
- Control Rate (Speed, Torque): 10 Hz
*version 2
Applications
Component for imaging satellites.
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Last updated: 2026-05-04
Technical specs
radiation tolerance
> 20 krad
mechanical vibration
14.14 Grms
dynamic unbalance
< 50 g mm^2
mass
1 kg
height
50 mm
width
100 mm
length
102.8 mm
operating temperature
-20 to 60 C
peak power
108 W
power
~ 1.2 W@ 0.1 Nms
supply voltage
12 to 36 V
data interface
RS485
CAN
CAN
angular speed
-10000 to 10000 rpm
torque
-39 to 39 mN m
angular momentum storage
1.0 Nms @28.5 V
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