Gear Ratio

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gear center 1Gear ratio, abbreviated as GR, is the number of teeth of the larger gear to the smaller gear.


Gear Ratio formula

\(\large{ GR = \frac{n_g}{n_p} }\) 
Symbol English Metric
\(\large{ GR }\) = gear ratio \(\large{dimensionless}\)
\(\large{ n_g }\) = number of teeth on the gear \(\large{dimensionless}\)
\(\large{ n_p }\) = number of teeth on the pinion \(\large{dimensionless}\)


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Tags: Gear Equations Ratio Equations