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

Many things can prevent the successful correction of unbalance.  Equipment resonance, bearing issues, product buildup and many more equipment problems can prevent a successful balancing  job from being completed.  All Equipment defects should be corrected before attempting to balance equipment.

Filed under:
Balancing, Maintenance Tips by Trent Phillips