Gear Ratio in Toothed Gearing Formulas

The Gear Ratio is the ratio of output gear speed to the input gear speed or the ratio of number of teeth on gear to that on the pinion. And is denoted by G.

Formulas to find Gear Ratio in Toothed Gearing

fxGear RatioGo

fxGear Ratio given Number of Teeth on Wheel and PinionGo

List of variables in Toothed Gearing formulas

fx Radius of Pitch Circle of Wheel Go

fx Radius of Pitch Circle of Pinion Go

fx Number of Teeth on Wheel Go

fx Number of Teeth on Pinion Go

FAQ

What is the Gear Ratio?

The Gear Ratio is the ratio of output gear speed to the input gear speed or the ratio of number of teeth on gear to that on the pinion.

Can the Gear Ratio be negative?

{YesorNo}, the Gear Ratio, measured in {OutputVariableMeasurementName} {CanorCannot} be negative.

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