This is intended to replace an LM10UU bearing. While this has a bit more friction, the end result is pretty good. Although, I am looking for a different material to use that will make the friction coefficient a bit lower.
Technical
1x 27mm length of 10mm PTFE tube, (10mm ID, 12mm OD),
1x 3D printed Inner Sleeve
1x 3D printed Outer Sleeve