Wheel Assemblies

Honeywell’s reaction wheel assemblies (RWA) and momentum wheel assemblies (MWA) are reliable, lightweight solutions to a variety of momentum control needs, providing stability and attitude-control for small to very large, heavy spacecraft. Earth-pointing satellites and multiple-satellite communication networks are examples of applications that require the fine attitude control that Honeywell RWAs provide. RWAs and MWAs from Honeywell have accumulated more than 9 million hours, or more than a thousand years, in space and have never caused a mission to end prematurely.

Applications

	Satellite pointing
	Satellite stabilization
	Operation from LEO to GEO
	Spacecraft with weight restrictions
	Payload pointing
	Extreme vibration control

Features

	Easily integrated into any spacecraft
	Long-life, greater than 15 years
	Electronic interface with various bus voltages
	S-level drive electronics
	Radiation hardened electronics
	Electromagnetic interference (EMI) protection
	Single-piece, tuned, inertia rotor
	Low emitted vibration
	Duplex-pair, biased-cage bearing suspension

Benefits

	Off-the-shelf qualified designs
	True turn-key operation
	High reliability
	Lower mass, fewer cables, better EMI performance
	Protection from upsets or failure in the harshest environments, from solar flares to nuclear events
	No special precautions needed for launch environment