### Mechanics and Machine Design, Equations and Calculators ...

Critical Speed Ball Screw and Lead Screws Formulas and Calculator: Counterbalancing Several Masses Loed in a Single Plane Formulas and Calculator: Balancing Rotating Fixtures Turning Operations on a Lathe Formulas and Calculator : Counterbalancing Masses Loed in Two or More Planes Formulas and Calculator. Unbalanced masses or weights rotating about a common axis in .