Fisher Price Gearbox dimension help

Help, we are locked out of school for 2 days and I want to get some parts built but I don’t have my FP gearbox available to measure from. Can someone with access to a 2011 gearbox give me the diameter of the hole through the gearbox that the output hub surrounds? I think it is about .5 inch but I want to turn a shaft and need to know for sure.
Thanks
Bruce

http://www.firstcadlibrary.com/pages/motors.asp

there is a cad model of the transmission there, if you have CAD wherever you are working then you can find out from there.

Don’t have CAD. Need the dimention.
Thanks
Bruce

This may not be the 2011 gearbox. The CAD model has been up there for years.

neither do i, ill measure one when/if i get into school tomorrow.

The hole in the back is .50

Most excellent. Now I have something for an interested student to do while we are snowed out of school. Now, how do I get them to come away from their computer games? hmmmmm
Bruce