Planetary Gear Calculator

Design your planetary gear speed reducer with this tool. Input your desired target ratio, add any constraints your design needs to meet, and the algorithm will generate a range of possible combinations that meet your specifications.

Simple Planetary Gear Calculator

Input/Output Selection ? Typically Input:Sun & Output:Carrier will produce larger speed reduction ratio

Input Component

Output Component

Gear Parameters

Sun Gear

Planet Gear

Ring Gear

Size ? This will limit the overall diameter of the planetary Gear, more specifically, the ring gear Root Diameter

Additional Parameters

Number of Planets

Target Parameters

Number of Results

Results

Compound Planetary Gear Calculator

First Stage Sun Gear

First Stage Planet Gear

First Stage Ring Gear

Second Stage Sun Gear

Second Stage Planet Gear

Second Stage Ring Gear

Number of Planets

Target Parameters

Results