Spinning flywheel that exchanges angular momentum with the spacecraft to point it.
What decides the purchase: Momentum storage mN·m·s · maximum torque mN·m · speed range · jitter and imbalance · power · mass
Typical materials: Steel or tungsten rotor, aluminium housing, hybrid ceramic bearings
What changes when it has to fly: Bearing life and micro-vibration are what fail, not the motor. The operator has been advised this is worth manufacturing in India.
Engineering reference written by us, not a supplier claim.
No Indian supplier in this index makes reaction wheel, plus 3 international.
| Supplier | Location | Certifications | Evidence |
|---|---|---|---|
| Honeywell Aerospace intl | international | — | stated capability |
| Rocket Lab (Planetary Systems) intl | international | — | stated capability |
| Veoware Space intl | international | — | stated capability |
Certifications are as published by each company and unverified. "Product indexed" means we hold an actual product record; "stated capability" means the company says it does this.