I printed this thrust bearing, a 2326, 50 mm OD, entirely out of plastic. Plastic races, plastic roller bearings, and a snap fit top race. See youtube below, and it's on thingiverse. I also printed it at 50% size or 25mm OD. It's interesting and will work for light load lazy susan type requirements. Or prototyping till your bearings show up in the mail. I'm going to try scaling 37.5mm OD next.