[Dominik Meffert] has done exactly this with his wire 3D printer project. Extruder cold end using a standard feeder roller For his ... a standard wire feeder wheel from a welder worked better.

[Cliff] of might have the answer for you, in the form of 3D printed bearings with filament rollers. With the exception of the raw filament rollers, the inner and outer race, roller cage and cap ...