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!