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.
|angular momentum storage||0.06 N m s|
|voltage||min: 7.5 V, max: 34 V|
|maximum power||23.4 W|
|radiation tolerance||> 20 krad|
|maximum voltage||50 V|
|mechanical vibration||> 23 Grms|
|torque||min: -20 mN m, max: 20 mN m|
|steady state power||0.9 W|
|maximum momentum storage||0.18 N m s|
|operating temperature||min: -40 C, max: 70 C|
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Last updated: 2018-07-28