Unbalance consequences, causes, definitions . Fundamentals - Part 1 unbalance, C.o.G., eccentricity, centrifugal force, vektor . Fundamentals - Part 2 axial unbalance distribution on rigid rotors, types of unbalances . Balancing and Diagnostic Systems Tolerances quality grade, allocation of balancing planes . Measuring Unbalance balancing machines, accomodation, drive, measuring principles . Balancing speed determined by balancing maschine, rotor, economy, safety . Correction of Unbalance types