Gearbox Selection Tool

Find the Right Gearbox in Seconds

Enter your motor power, speed and reduction ratio — Tornex calculates the required torque and checks the factor of safety in seconds.

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Gearbox Selection Tool

Calculate required torque, actual output torque and factor of safety in real time.

bolt Quick presets

Motor Power (W)

Rated Motor Speed (RPM)

Torque (Nm)

Reduction Ratio Required

Nominal Output Torque of Gearbox (Nm)Kindly select from datasheet

Actual Output Torque (Nm)

Factor of Safety

Awaiting input Enter motor power, speed and reduction ratio to begin.

1.0 – 1.25

Uniform, continuous duty smooth operation, few starts / stops per hour.

1.25 – 1.5

Moderate shock / intermittent 5 to 10 cycles per minute. Rapid acceleration.

1.5 – 2

High shock / frequent reversing 10+ cycles per minute, heavy dynamic loads or indexing table.