6204 and 6003 No Ball/Roller Bearing

thingiverse

This is a no ball bearing inspired by Sabe Ledger's design on thingiverse. I like this design because the print won't fail trying to print small spheres, and supports aren't necessary. It will work just as well as a ball bearing if you use Super Lube. It will likely require you to break it loose after it's finished printing. The tight fit is necessary to keep it from wobbling.