where are you getting decent bearings for 24c??? every time i order cheap bulk bearings they suck. pls share secret
I was curious as well
I have some relatively old bearings, but I feel like there are just some no matter what I do won’t get clean.
Which will happen, but in theory they should last longer than I feel they are!!
You do the compressed air after the lube? I thought generally it was supposed to be before? Educate me!!!
I use the air to blow out the solvent, then I lube the bearing and use the air to spin it fast. I feel it distributes the lube and blows out the excess.
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Note sure if I can mention it here (not a yoyo store but bearings that can be used for yoyos). If so, please remove.
Ningbo Bearing Inc., they are on a major Chinese market site. More quiet than YYF’s, a pleasant constant rattle. $0.24 is after I optimize and subsidize the shipping with other items from China using a forwarding service. For C, you want UR188 KK, 10-ball Stainless Steel. For D you want U685ZZ.
I converted a Henrys Viper AXYS to a modern response using a Yoyojoker Response Offstring Unit meant for their EX system. That way I wouldn’t have to use Turbo Discs for it (and keep them for the TK yoyos). I’ve got a Ningbo D in there for 4A since I couldn’t figure out how to disassemble the AXYS to get its bearing.
Want to see it perform? I swapped the stock bearing in a Shell Yoyo 001 Plastic for a Ningbo. The yoyo feels like a beefier Stelvia X-SP with a more aggressive H shape and fatter rim. You can see it start to wobble around 4:13.
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I’m probably not the best person to speak on this topic but in my seven years of yoyoing I’ve never had to clean a bearing. I’ve replaced a handful as I’ve had a few break somehow. I’ve never had any issues caused by not cleaning my bearings so I will most likely continue to never clean them.
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Never!?!?!
Not a single time 
How do you know they just didnt need to be cleaned
They might’ve needed to be cleaned but I threw them out because I was a little too rough with pliers and damaged them
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That’ll do it
Are they available concave?
Yes, the “U” in front of the standardized metric bearing ID code is their way of saying it’s concave. It is truly rounded concave, not YYF/Central Bearing’s center track (flat center area) also known as T-type. Curve radius can be and is often different from Dif-e-yo patented KonKave (since expired). It’s the method by which I usually ID bearing manufacturer (among other aspects). Ningbo’s are particularly shiny.
Ningbo C:
Ningbo D:
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