[Paul Copioli]

For whatever reason I can't find the drawing I know I have of the Fisher-Price motor, but I do have the data you need. The hole you need to put in the pinion is 0.123" +0.001". The shaft is a nominal .125" shaft with a knurl (rough lines) on it. The dimension and tolerance I gave you is what I have been using since 2001 (the shafts have not changed). The mounting holes are for M3 x 0.4 pitch screws and are 25mm apart centered on the shaft diameter.

I hope this helps.

-Paul