Driver teeth
Gear on the input shaft
Driven teeth
Gear on the output shaft
Input speed (RPM)
Input torque
Torque unit
N·m
lbf·ft
lbf·in
Efficiency (%)
Use 100 for the ideal case. A well-made spur gear pair is roughly 95 to 99.
Gear ratio (driven ÷ driver)
Output speed
Output torque
Input power
Output power
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