Epicyclic Gear Train Designer

Planetary gear kinematics, ratios, and torque multiplication.

Sun Teeth (Ns) 20

Planet Teeth (Np) 20

Ring Teeth (Nr): 60
(Locked by Ns + 2*Np = Nr)

Input Speed (RPM) 100

Input Torque (Nm) 50

Gear Ratio:0.250 : 1

Output Speed:25.0 RPM

Output Torque:200.0 Nm