The Spool Guide Side Bearing Mount is meant to keep the filament spool on the spindle.
I use this remix of this classic filament holder available on Thinaverse on both My Ender 3 Pro and Sovol SV06. Lately I have notices the newer cardboard spools some how run up on to the inner bearing off the spindle. This model is designed to keep the spool on the spindle for this spool remix. Just like the spindle, it is designed to requires an additional 608 bearing. It has the added benefit of preventing the spindle for popping off when the spool is changed. So it s a Win, Win.
The modal is designed using AUTODESK Tinkercad . The Bearing is only held in by friction so no other hardware is needed. It take a bit of persuasion to place the bearing, but once in it place, it will not fall out.
The author marked this model as their own original creation.