Original Prusa I3 MK3 Z axis bracket with bearing

I modified the original Z axis top brackets to install the bearings for Original Prusa I3 MK3. Even though there is no visible wobbling, I tried to get rid of invisible wobbling and vibration.

https://youtu.be/3y51PHxfeQE

I bought the bearings at,
https://www.amazon.com/gp/product/B011ANC2LK/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1