Fischer Price Info

Technical Motors
1

A few questions on the FP motor:

  1. What is the thread on the mount holes on the FP motor?
  2. What is the exact diameter of the output shaft?
  3. If anyone has ever pressed on a new pinion, what size hole did you drill into the new pinion for the press fit?

Thanks

2

You might want to consult the cad files of the motor http://www.firstcadlibrary.com/ … you can get dimensions off of there.

3

That might not be the new one, also the dimensions are only as good as the measuring tool and person who took them.

4

The link below may help out.

I am 99% sure it is the same motor we recived in the kits. It may or may not be the same for previous years models (espically those not made by JE).

http://www.johnsonmotor.com/product_sheet/fect_sheet.php?ProdID=130--A

-Andy A.

5

Ok, thanks guys for the info.

However, the model of the FP motor on FirstCad Lib. doesn’t have a tapped hole for the mounts. I’m guessing its a metric thread (the rest of the motor is metric), but does anyone know what it is?

6

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

7

Exactly what I needed.
Thanks Paul!