Unbalance occurs when the rotor’s mass is no longer at the center of rotation. Unbalance can be caused by many factors:
- Assembly error
- Machine tolerances
- Eccentric components
- Wear
- Corrosion
- Thermal distortion
- Mechanical distortion
- Material buildup
- Bent components
- Broken components
Likewise, many things can also prevent the successful correction of unbalance. Equipment resonance, bearing issues, product buildup, and other equipment problems can prevent a balancing job from being successfully completed. All equipment defects should be corrected before attempting to balance equipment.
Watch our Balancing Know-How: Diagnosing Unbalance video for a quick introduction to diagnosing machinery unbalance with vibration analysis. Pair it with our 2-plane VIBWORKS Field Balancer to identify and correct unwanted consequences of equipment unbalance to achieve an optimal balancing job!
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Balancing by Gary James CRL