Ender 3, filament guide

OPDATE Version 2

Now made so that fits 608 bearings

Version 1

you need 2 bearings in size 20 x 9 x 6mm (D. d. and thickening)

SKF 619 / 9-2Z

http://www.skf.com/group/products/bearings-units-housings/ball-bearings/deep-groove-ball-bearings/deep-groove-ball-bearings/index.html?designation=619%2F9-2Z