Best & Easiest to print Ball Bearing

After being frustrated and disappointed by all the ball bearings I've downloaded and printed I decided to fix all the issues I have been having and make a bearing that actually works very well, and is easily printable with even the cheapest of printers.

I was inspired by the way Gear_Down_For_What created his gearboxes in such a simple way to make them easy to assemble. So I've made the outer race with a small gap, so you can easily spread apart and add the 11 .177 Cal. (4.5mm) BBs, and then