Balance Tolerance Calculator
Calculates permissible residual unbalance per ISO 1940 from rotor mass, balance grade, service speed, and correction radius.
These calculators are free to use. No signup, no email address, nothing to install. One sizes a balance tolerance to ISO 1940, the other works out engine bobweight from component masses.
Calculates permissible residual unbalance per ISO 1940 from rotor mass, balance grade, service speed, and correction radius.
Calculates engine bobweight from component masses, with a reference table of bobweight percentages for common engine families.
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