Technical Calculators

Get the power transmission solutions you need with our full selection of technical calculators.

Belt Drive to a Direct Drive Calculator *NEW*

Make upgrading from a belt drive to a direct drive simple!

Drive Formulas

Commonly used formulas for mechanical power transmission drives.

Energy Efficiency Calculator

Calculate how much energy you are saving by switching to an efficient Sumitomo gear drive.

Cyclo Lubrication Intervals

Recommended lubrication intervals for Cyclo reducers and gearmotors

Cyclo Overhung Load

Calculate the overhung load capacity of a Cyclo reducer or gearmotor.

Precision Reducer Application Data

Datasheet to calculate the application of motion control drive.

How to Calculate Gear Ratio

We walk through how to calculate gear ratio, in hopes that if you encounter this problem in the field, you will be able to quickly determine what size Sumitomo gearbox fits your application.