Calculator

Interactive tool. Determines the plane set for modal balancing: the unbalance proportion and relative angle in each correction plane, from the planes' axial positions, the target mode, and the mode shapes, with a check of the set's authority over the mode. Companion to the at-speed calculator.

Interactive tool. Solves a complete at-speed or trim balancing job: up to five planes, plane sets for modal balancing, twelve probes, and six speeds, with influence coefficients fitted from every run, least-squares corrections weighted by acceptance limits, and a printable report.

Interactive tool. Performs the residual unbalance verification test for one correction plane from 6, 8, or 12 test positions, returning the verified residual, calibration check, reading scatter, and a to-scale polar plot. SI and US units, with a printable record.

Interactive tool. Splits a required balance correction between two available angular positions, returning the two component masses, the total mass, and the mass penalty of the split. SI and US units, with a printable record.

Interactive tool. The hard-bearing balancing machine’s central computation, in either direction: converts the rotating forces at the pedestals (F1, F2) to the unbalance vectors in the correction planes (UA, UB), or the reverse. SI and US units, with a printable record.

Interactive tool. Converts a rigid rotor’s unbalance between the per-plane form a balancing machine reports (UA, UB) and the equivalent static-and-couple form (Ueq, Ceq), with magnitude and phase in both directions. SI and US units, with a printable record.

Interactive tool. Allowable residual unbalance for single-plane rotors under API 4W/N or ISO 21940-11 G-grades, with the allowable unbalance mass at your radius and the rotating force at speed. US and SI units.