Convert Quick Print Gear Bearing to fit like Emmet's gear bearing.

Attach these four parts using glue, heat or spin welding, and you can use Whosawhatsis single layer gear bearing, https://www.youmagine.com/designs/quick-print-gear-bearing by Whosawhatsis, to do useful work. Fits same shaft and hole size as Emmet's, http://www.thingiverse.com/thing:53451 (Bearing5), but not as thick and uses less material. Also rolls better, at least when printed by me.