PVC Pipe car frame, how to make spinning wheels?? (MS Paint Drawing included)

Hey guys,
I plan to make a mini car frame out of PVC Pipes,
but I'm having trouble trying to figure out how I can connect it to a PVC pipe wheels so it spins.

I can make it static easily, but having the wheel spins i'm having difficulties.
here is a pic of what I'm trying to achieve:

If your main pvc pipe is like an axle and you have a wheel with a PVC pipe center, one would have to be larger than the other so they can slip inside of each other, slip a bearing over the wheel size and stick it into the axle side. This will give you a tight fitment and ease of have your wheels roll.

Or make a hub adapter with bearing center, much like a car...have a flange on both sides and bolt them together. The center bearings will allow the wheels to turn, but the assembly will stay conjoined due to the mated flanges.

Thanks, I have a picture in my head now, the bearing will work, I will have to find a different sized pvc pipe for the wheel or a size adaptor etc

perhaps something like this
http://4.bp.blogspot.com/_opAxJenNG5M/TJLfQYiy8EI/AAAAAAAADQ8/6pzACfg-9iw/s1600/100_7952.JPG

or on the outer part of the pipe

Easiestt way would be to get an adapter to the small ID of the bearing. You may need to sand down the ID of the axle side and OD of the wheel side a bit to get the fitment right.