I just want to know any type of bearing that were or was use on yoyos
I know there are dorothy, SPEC and center trac used on yoyofactory
Speed bearing on yoyojam
Konkave and ceramic konkave by dif e yo
Grooved bearing in crucial
Also there are full ceramic bearing used on jazz yo shiled and teflon coated bearing used on phi
Hybrid metal plastic bearing on hspin, and aircraft grade bearing on general yo (i dont know what they called those)
I also heard about EZO bearing, but have no idea about what it is
So i just wondering, is there any special type of bearing use on yoyo that i dont know, and that i didnt understand or has no idea about it?
Which is better over another?
And is a bearing really give a different character to yoyo, which if changed would also change the yoyo character?
Thanks