Summary

Sinclair Interplanetary pioneered high-reliability vacuum-lubricated reaction wheels for picosatellites, nanosatellites and microsats. There are currently 76 wheels on-orbit, all working well.

All of these reaction wheels incorporate a built-in digital processor. They can be commanded over a serial bus to produce a desired speed, momentum or torque. They report digital telemetry concerning speed, temperature, voltage, current, and other health parameters.

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Last updated: 2020-06-23

RW3-0.060

35,000 USD (ROM)

Specs

data interface
CAN
mass
226 g
angular momentum storage
0.06 N m s
voltage
7.5 — 34 V
maximum power
23.4 W
length
77 mm
height
38 mm
radiation tolerance
> 20 krad
maximum voltage
50 V
mechanical vibration
> 23 Grms
torque
-20 — 20 mN m
steady state power
0.9 W
maximum momentum storage
0.18 N m s
operating temperature
-40 — 70 C
width
65 mm

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