A reaction wheel (RW) is an electric motor attached to a flywheel, which, when its rotation speed is changed, causes a counter-rotation proportionately through conservation of angular momentum. [1] A reaction wheel can rotate only around its center of mass; it is not capable of moving from one place to another (translational force).

Our high-reliability, vacuum-lubricated reaction wheels are designed for picosatellites, nanosatellites and microsats. More than 76 wheels are on-orbit, performing well.

Reaction wheels are essentially flywheels that enable repositioning of controllable space vehicles and satellites while they are in orbit. Learn more!

The reaction wheel assembly team has decided to use urethane wheels to be manufactured by Advanced Urethane Solutions because of their ability to meet all of our specifications at a low cost and with a reasonable delivery time.

2020年5月4日 · Reaction wheels are used to control attitude of the spacecraft and they work due to conservation of momentum. Let's say we have a reaction wheel on the x-axis of the space craft, aligned with the principle axis of inertia, then the total moment of inertia is $h = h_s + h_w$,

2014年12月23日 · Reaction wheels, momentum wheels, and control moment gyros are three somewhat distinct ways of controlling the rotation and orientation of a spacecraft. Reaction wheels are the easiest to understand, at least in their simplest form.

2023年5月14日 · Discover the fascinating world of reaction wheels, the spinning disks that enable satellites to maintain precise orientation in space. Explore different configurations like inline, pyramid, and orthogonal, and learn how they impact control and redundancy.

2024年10月10日 · Reaction wheels are used to point spacecraft where you want them to point. They don’t provide as much torque as Control Moment Gyroscopes (CMGs) and they require more power for the torque you get, but they’re smaller and lighter than CMGs.

2024年5月1日 · Reaction wheels are commonly used in rocketry for attitude control and stabilization of spacecraft. They are used in a wide range of applications, including Earth observation satellites, communication satellites, and deep space missions.

2023年10月24日 · Reaction wheels are mechanical devices used for attitude control on spacecraft and satellites. They provide torque to rotate the spacecraft by exchanging angular momentum with a spinning mass inside the wheel.