This is a one piece version of Tush. Bearings (608's) are pushed up through the holes in the bottom of the bracket and then they snap in place.

It takes a little concentration to get them snapped into the center of the bearing. They snap easily over the outer race, but get a little tougher snapping into the inner race.

Bearings can be removed by continuing to push up out of the snap features.

I kept the infill low to allow better flexing of the snap features.

Also attached is the step file for the bracket.

Prusa

i3 MK3

No

20%