I want to extend the output shaft of a gearbox by 6 inches, from the face of output seal to the end of the shaft would be 6.00 inches. I want to calculate the overhung load but all of the equations that I find seem to focus around having a pulley or sheave at the end of the standard output shaft, but we will not be adding a pulley or sheave to the end of the shaft. The equation in the gearbox manufacturers catalog is (HP*126000*Overhung Load Factor)/Pitch Diameter*Output RPM.
Does anyone have an equation I can use?
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