Slim Spool Holder

It was just a fast throw together, but has been working well for me, so I thought I'd post it.
Only problem, I used parts laying around to help me build this. That being said, the ball bearings may not be a common size that would be around a 3d Printer's house.

Also only intended for 200mm by 65mm filament spools. Other versions will probably come to account for smaller 500gram spools.

4x 5mm id; 10mm od ball bearings -
https://www.amazon.com/Miniature-Skateboard-Bearings-MR105ZZ-L-1050ZZ/dp/B00ZHSTKCE/ref=sr_1_8?ie=UTF8&qid=1512444898&sr=8-8&keywords=5x10+ball+bearing
2x 5mm x 60mm dowel pins -
https://www.amazon.com/uxcell-Stainless-Fastener-Elements-5mmx60mm/dp/B018YPIQRQ/ref=sr_1_4?s=industrial&ie=UTF8&qid=1512444969&sr=1-4&keywords=5x60+dowel+pin

With this in mind, printing a 5mm by 60mm cylinder could be a possible route.
*(I did not use the provided dowel in my print!)*

No support needed, if anything, would make the roller rough and not roll so well.