If you want to find the secrets of the universe,  think in terms of energy,  frequency and vibration.” ? Nikola Tesla

Could Tesla’s secret be the energy wasted due to vibration at a frequency equal to shaft speed all caused by rotor unbalance?
Balanced rotors are critical for achieving production and profit goals. Unbalance creates high vibration, which leads to other faults resulting in decreased machine life, wasted energy and reduced efficiency. Smooth-running machines are required for producing products that meet customer specifications. The IOSR Journal of Mechanical and Civil Engineering states that rotor unbalance is the major cause of vibration problems. A good balancing process is essential for successful physical asset management.
Read my entire article Field Balancing Rigid Rotors at Reliable Plant.

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, by Bill Hillman CMRP