Finished printing at 85%. Standard axles now press fit into center of hub and into rollers. The only thing I had to do was drill the holes in the hub for the axles. I drilled a 13/64th inch hole so the axles could spin freely. The plastic was very thin but did not crack.
I set the full size print to the left as a size comparison. Next I am going to install on a robot to see if they work.