In simple terms, gearbox output speed is calculated by dividing the motor speed by the gearbox ratio: Output RPM = Motor RPM ÷ Gearbox Ratio For example, if you use a 1400rpm motor with a 20:1 gearbox, the output speed will be: 1400 ÷ 20 = 70rpm output speedIn simple terms, gearbox output speed is calculated by dividing the motor speed by the gearbox ratio: Output RPM = Motor RPM ÷ Gearbox Ratio For example, if you use a 1400rpm motor with a 20:1 gearbox, the output speed will be: 1400 ÷ 20 = 70rpm output speedThe Gear Ratio Calculator above calculates gear ratio, output RPM, input RPM, output torque, input torque, multi-stage gear train ratio, vehicle speed, and engine RPM. For a simple gear pair, gear ratio is the driven gear teeth divided by the driver gear teeth. The Gearbox Ratio Calculator is an essential online tool for engineers, mechanics, automotive enthusiasts, and anyone working with machinery involving gear systems.
[PDF Version]