R/C tank drive wheel

I finally have got my service up and running, please visit https://www.blueboxgoblin.co.uk/ for some other interesting projects.


This is part of my R/C tank work in progress.
This constans two versions of middle cogwheel. I was trying them both, however longer (v2) shaft gives more freedom and allow me to add an extra wall elements which are still work in progress.
Cap files are also available with the gearbox link below

You will need 4 M3x35mm screws.
And 608zz ball bearing with sho