At a glance
Glossary
Our glossary provides you with a quick overview of important balancing technology terms.
This makes it easy for you to keep track of all technical terms and understand the context immediately.
Glossary of balancing technology
Susceptibility to imbalances
Probability of a machine showing a significant change in unbalance within a certain operating time.
Equalization
Changing the mass distribution of a rotor in such a way that the unbalance or the vibrations caused by it are reduced to permissible values. This is usually achieved by adding, removing or shifting material on the rotor.
Equalization level influence
Change in the unbalance display of one correction plane when the unbalance in the other correction plane changes; usually expressed as a percentage value. The better the plane separation, the lower the influence of the correction plane.
Balancing
Process during which the mass distribution of a rotor is checked and typically corrected so that the residual imbalances, the vibrations of the bearing journals, the bearing forces and/or bearing pedestal vibrations at operating speed or in the operating speed range are within specified limits.
Balancing on reversal
Compensation of the unbalance of auxiliary parts and the unbalance effect due to fit clearance, radial and axial run-out between auxiliary parts and the rotor to be balanced in order to identify the actual rotor unbalance. The rotor is rotated in relation to the auxiliary part in successive measurements.
Balancing quality
Possibility of dividing rigid rotors into classes; product of mass eccentricity and angular velocity at operating speed or path velocity of the center of mass, each in mm/s (see also ISO 21940-11).
Balancing bearing
For example, rolling bearings with reduced clearance to accommodate an engine rotor in a low-speed balancing machine.