Sorry, I think that it is your bearing
I just tried my, pre Cirkus, bearing. One gentle push with index finger only (not as fast as you got yours going and only kept in contact for about one second) and it kept on rotating for about 45 seconds - also came to a much smoother stop than your video.
Apologies for not showing video - i use “post images” if i find a way i will update.
I saw a video of a bearing spinning also side by side and the bearing was spinning for quite a long time