This is a custom holder for Anet E12 (probably works with E10; CR10...).
This holder uses 17mm inner diameter // 35mm outer // 10mm Thick Ball bearing

No

No

0.2

25% Cubic 3 layer

-Needs 2 pairs of each Nutt
-the Bearing cover has a brim in one side for better adeshion

-the threads works better if they are lubricated with graphite (a simple pencil works fine)

i have a spare bearings and the PLA spools moves a bit choppy