Filament Reel Bearings for 1" PVC

Upgrading my printer from a single color to a triple cone hotend extruder (the new Diamond) and wanted:

1. a way to change out filament spools a lot simpler/quicker
2. to reduce drag from the spools that were just hanging on 1" PVC pipe

So I printed these bearing to go over 1" PVC pipe. With four, two in front and two behind, the filament spool turns easily and is not not size specific.