Is this an NSK Center Track?

Can anyone tell if this is an NSK bearing? It’s an 8-ball and has a pretty distinctive-looking race/retainer. I don’t have another NSK handy to compare it to, and I’m not seeing any markings. Anyone recognize it?

Does it feel like an insanely good bearing?

Where did you get it? If it was from the BST then whoever you bought it from should know.

And if it was in a yoyo you bought brand new, i’d imagine it would be marketed as including an NSK.

The NSK CTs seem to have a pretty narrow flat area compared to a typical CT so that could help you.

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It does feel exceptionally smooth which is what prompted me to wonder

Got it a while back in a trade and it came in the yoyo, so there’s no telling. I will take a look at the center track area now. Thanks!

You could DM the person you traded with, because you really have to go out of your way to acquire an NSK CT. I can’t imagine this is something you’d forget buying or accidentally leave in a yoyo you were trading.