Watch this video and you will be set.
Ceramic bearings vs steel spinners.
Trying to figure out the difference between fidget spinner bearings.
The graph below shows a comparison between two steel bearings skf and ntn and a ceramic bearing enduro.
Full ceramic bearings published.
I showed and tested full ceramic bearings stainle.
Initially the enduro bearing has lower friction at around 600km of use the ceramic bearing has worn a track into the comparatively soft steel races and the bearing friction starts to increase dramatically.