An unbalanced rotor will cause vibration and stress in the rotor itself and in its supporting structure. Balancing of the rotor is therefore necessary to accomplish one or more of the following:
Increase bearing life.
Minimize vibration .
Minimize audible and signal noises.
Minimize operating stresses.
Minimize operator annoyance and fatigue.
Minimize power losses.
Increase quality of product.
Satisfy operating personnel.