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Precession BalancingTraining

Precession Balancing

Duration 2 days

Unbalance in machinery puts excessive load on bearings and all other components, including the machine
structure itself. The unbalance forces also excite resonances, cause looseness and fatigue failure, generate noise,
and in certain circumstances, result in poor product quality. It has also been found that machines that are out of
balance consume more energy

The Topics Include

  • Introduction
  • What is unbalance
  • What causes machines to be out of balance
  • Understanding phase
  • Phase conventions
  • Advanced phase
  • Understanding vectors
  • Balancing theory
  • Different types of unbalance
  • Diagnosing unbalance
  • Confusing unbalance with other fault conditions
  • Preparing for the balance job
  • Single plane
  • Single plane vector balancing
  • Two plane balancing
  • Static-couple balancing
  • Balancing overhung rotors
  • Four run no phase balancing
  • Trial weight selection
  • Splitting and combining weights
  • What can go wrong – and how to recover
  • Tolerances and quality and the ISO standards
  • Tolerances and quality and the API MIL standards
  • Conclusion






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