XYZ Da Vinci Extruder Repair Parts

I designed a replacement bracket for the aluminum wheel failure that occurs on the Da Vinci. I wanted something that was a direct replacement so I designed around a MR137ZZ bearing.... something close to the diameter of the aluminum wheel.

EDIT (2/3/19): I recently redesigned the bracket I originally posted. I went with using two bearings on the peg and it helped a lot. It's currently printing a mausoleum piece that I would never have trusted on this machine. Close to 8 hours and no issue