The high speed balancing (HSB) is applicable when specified in job documentation as per ITN07203.00. The procedure is applicable to each steam turbine rotor produced by GE Oil & Gas. Acceptance criteria been defined for High Speed Balancing facility equipped with balancing pedestals Schenck type DH50, DH8, DH7, DH4 and DH6. The tolerance calculation is based on an analytical formulation applicable to each balancing system consisting in a rotor with supporting pedestals.