Reaction Wheels

Our high-reliability, vacuum-lubricated reaction wheels are designed for picosatellites, nanosatellites and microsats. More than 240 wheels are on-orbit, performing well.

All Sinclair Interplanetary by Rocket Lab 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.

1 Nms

Our largest wheel, suitable for 100 kg Earth-observation missions. There are currently 52 units on-orbit on 13 spacecraft, with the first launch in June 2016.
Data Sheet & Pricing
Interface Control Document
Part Number Guide
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400/200 mNms

This wheel is optimized for torque and for radiation hardness. It can give performance equivalent to a 0.4 Nms CMG with 22.5 deg/sec gimbal rate at much reduced mass and complexity. Designed for high-agility remote sensing or science microsatellites.
Data Sheet & Pricing
Interface Control Document
Part Number Guide
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60 mNms

This wheel packs high-torque motor phase current control electronics into a small package. There are 52 units on-orbit on 16 spacecraft, with the first launch in June 2014.
Data Sheet & Pricing
Interface Control Document
Part Number Guide
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30 mNms

Sinclair Interplanetary’s first wheel design, and still the most popular. First launched in April 2008, there are now more than 50 units on-orbit. Many of these are onboard the University of Toronto SpaceFlight Lab's GNB series of spacecraft. They fit comfortably into a 6U to 12U cubesat.
Data Sheet & Pricing
Interface Control Document
Part Number Guide
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10 mNms

This wheel is ideally suited for smaller cubesats. There are 10 units on-orbit on 4 spacecraft, with the first launch in June 2014.
Data Sheet & Pricing
Interface Control Document
Part Number Guide
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3 mNms

This wheel is so tiny that 3 wheels can be carried in a 1U Cubesat. A 4-wheel pyramid configuration is also possible.
Data Sheet & Pricing
Interface Control Document
Part Number Guide
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