Reaction Wheel
Space Inventor ApS
High-performance reaction wheel for microsatellite attitude control, available in 500 and 1000 Nms configurations.
Technical specifications
- MSRP
- €55,000
- Momentum capacity
- 500 and 1000 Nms variants
- Mission lifetime
- Up to 5 years
- Motor
- 3-phase outrunner permanent magnet synchronous motor (PMSM)
- Bearings
- Two hybrid ceramic high-precision bearings
- Interface
- Redundant CAN bus via CSP
- Body material
- Al-6061-T6
- Rotor material
- Ferritic stainless steel with Neodymium magnets
About
Space Inventor’s high-performance reaction wheel units are meticulously designed for microsatellite missions with mission lifetimes of up to 5 years. These units feature an integrated 3-phase outrunner permanent magnet synchronous motor (PMSM) with fully integrated motor control electronics and software for seamless, efficient satellite attitude control.
The rotor is precisely suspended between two hybrid ceramic high-precision bearings, ensuring longevity and low friction in vacuum conditions. Each wheel operates autonomously with an internal microcontroller, controlling momentum and torque based on onboard computer commands, and includes a redundant CAN bus interface via CSP plus basic telemetry sensors (temperature, current, speed).
For comprehensive three-axis control, Space Inventor recommends a reaction wheel assembly with four wheels in a classic configuration. The 500 and 1000 Nms reaction wheels prioritize reliability through redundant stator windings and driver electronics. Construction uses Al-6061-T6 for the body, ferritic stainless steel for the rotor, and Neodymium magnets for enhanced magnetic properties.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
