Single Plane Balancing may be needed when amplitudes at 1x operating speed get too high. In nearly all cases observed by VAI (in absence of an axial resonance) the radial directions have the highest amplitudes, and axial levels are low.

VAI recommends against allowing untrained staff to perform balancing moves because the kinetic energy of a balance weight at operating speed can be extreme. If it comes off, there could be a serious personal injury and/or component damage.

Balancing is performed by collecting as-found amplitudes and phase. A ‘trial’ weight is then added and another set of data is collected. Assuming the trial weight provide a response, the correct amount of weight and its correct location can be determined using vector mathematics. There is no need to purchase expensive balancing software.

Component EPN / Date / Rotation:                                /                             /                           .

As-found amplitude and phase:                                           Mils @                           degrees

Trial weight and its location:                                                  @                              degrees

Trial weight response:                                                        Mils @                           degrees

Correction weight and its location:                                          @                              degrees

As-left amplitude and phase:                                               Mils @                           degrees

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