auswuchten

Auswuchten, or balancing, is the process of removing mass unbalance in rotating parts so that the center of gravity lies on the axis of rotation and centrifugal forces are minimized during operation. Unbalance causes vibrations, noise, and uneven wear, reducing efficiency and component life.

Two main types are static and dynamic balancing. Static balancing corrects unbalance in a single plane perpendicular to the axis of rotation, so the heavy spot aligns with gravity when the rotor stops. Dynamic balancing addresses unbalance in two or more planes and is performed while the part spins, allowing correction of both radial and angular distribution of mass.

Balancing is typically performed with a balancing machine. The component is mounted, spins, and sensors measure vibration, phase, and amplitude. A calculation determines the location and amount of counterweights or material removal needed. Weights are attached to predefined positions or, in some cases, materials are removed from specific areas. After correction, the item is spun again to verify that the residual unbalance meets specifications.

Common applications include automotive wheels, drive shafts, propellers, turbine rotors, fans, pumps, and electric motor rotors. In wheels, weights are mounted on the rim; in other machinery, balancing may require adding counterweights or machining to achieve the desired balance.

Proper auswuchten reduces dynamic loads, minimizes wear and noise, improves performance and efficiency, and extends the service life of rotating equipment. Standards and manufacturer specifications guide the balancing procedures and target residual unbalance.