Satellites and subsystems > Attitude > Attitude actuators > Reaction wheels > VRW-A-1 Reaction Wheel
Key highlights
The VECTRONIC Aerospace VRW-A-1 Reaction Wheel is a 1.9 kg system with a maximum angular momentum of 1.25 Nms.
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Last updated: 2023-05-26
VRW-A-1 Reaction Wheel
Technical specs
moment of inertia (rotor)
2.0e-3 kg m^2
maximum speed
± 6000 rpm
maximum angular momentum
1.25 N m s
maximum torque
± 20 mN m
speed control loop accuracy (2σ)
0.1 rpm
static unbalance
< 1 g mm
dynamic unbalance
80 g mm^2
length
115 mm
width
115 mm
height
80 mm
mass
1.9 kg
operating temperature
-20 to 70 C
storage temperature
-40 to 80 C
vibration
26 g rms random 3 axis
radiation tolerance
> 20 krad
power consumption
<1.5 W (@steady state, no speed)
<4.5 W (@steady state, max speed )
<45 W (@max. torque, max speed)
<4.5 W (@steady state, max speed )
<45 W (@max. torque, max speed)
input voltage range
9 to 36 V DC
signal interface
RS422/485
CAN
CAN
nominal in-orbit lifetime
45000+ hours
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