what brand and model of bearing is this?

[barneco]

Can anyone identify the make and model of this bearing?  Got it from a secondhand throw but I'm really liking it and would like to pick up a few more.  It's obviously concave, and the outer race is a different color than the inner.  The outer is a much darker color with what I would describe as a blasted, grainy texture, except where the string lies, which has worn shiny.  The inner race definitely looks like a basic steel.

I'm wondering if the outer race is a ceramic material, and if I might be able to identify the exact make and model of this so I can be sure to get some identical copies.

Any expertise would be most appreciated.  Thanks!

[T4T3Z0R]

Looks to me like the colour difference between the inner and outer race is do to the outer race being tarnished soo im going to guess its a knockoff kk

[yoyospirit]

Some bootleg kk. 

[barneco]

alrighty, thanks for the input

[theTopo]

Yeah, looks like a Chinese concave bearing. The cheaper ones are not made of stainless steel so will tarnish over time causing that darker color on the outer race.

Also, I've found they're quite variable so you may not get the same performance even  if you could track down the specific brand.

[moefv]

Is that yoyo the White Knight Battosai?

[barneco]

awesome, thanks for the additional info.  makes sense to me.  I guess maybe I'll try a basic KK....or maybe a ceramic just for performance comparison.  This one I'm playing with actually performs better than 2 ten-balls I have(when compared on a pure throw).

Thanks again for the input.

Oh, yeah, yes, this is a white knight battosai.

[Puffpwn]

Probably came with an AODA throw and he threw it in. Those are great, cheap throws, get a few. Now.