Roller Ball Bearing Filament Spool Insert
thingiverse
This is a Customizable Filament Spool insert for use with Roller Ball Bearings. This should be able to be used with any size roller ball bearing, as long as the roller bearing is smaller than the hole in the filament spool. The idea is to use this with a threaded rod. I use nuts on one side and a spring clip on the other side to allow for quickly changing spools. The spacer allows the ball bearings to be separated from the nuts/spring clip attached to the threaded rod. Numerous prints were done using this 8x22x7 ball bearing. This ball bearing works well with an 8mm (5/16") threaded rod: 608ZZ 8x22x7 Shielded Greased Miniature Ball Bearingshttp://www.amazon.com/gp/product/B002BBD6X4 (The pictures show the rod sitting on thing:761893.) Tony Hansen 2015
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