AM8 Z Axis Single Bearing

I've broke a few of these trying to slide it onto the 2020 v-slot extrusion. The back of it also rubs against the 2040 vertical extrusions. I removed some of the material from the inside to allow it to slide onto the 2020 easier and removed some from the back so it didn't rub on the 2040 vertical extrusions.

Mirror the part for the opposite side.