Planetary Reduction Gear With Oldham Coupling

Number of teeth of the fixed internal gear Z1 = 40
Number of teeth of the planetary gear Z2 = 38
Module m = 2 mm
The eccentricity caused by the blue shaft is 2 mm.
Transmission ratio i = - Z2 / (Z1 - Z2) = -19
Rotation of the pink gear is transmitted to the green shaft by Oldham coupling.