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.


226 g
0.06 N m s
0.18 N m s
min: -20 mN m, max: 20 mN m
77 mm
65 mm
38 mm
min: 7.5 V, max: 34 V
50 V
23.4 W
0.9 W
min: -40 C, max: 70 C
> 23 Grms
> 20 krad
35000 USD
full datasheet


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Last updated: 2018-07-28