Sackorange 608 ZZ Skateboard Bearings, Double Shielded,8x22x7 Miniature Ball Bearings（Pack of 20)

These bearings worked for what I needed them for (filament spool rollers). They were sticky at first but as other reviewers pointed out that was easy to fix. What cant be fixed is the variability of the tolerances. The diameter of the inner hole was inconsistent even on opposite sides of the same bearing. A few of them also came with the metal shields smashed. They can be removed pretty easily bit if you need them to be shielded I would look elsewhere.

Had to clean with WD-40 but after that they all spun freely no problem

Some bearings roll smoother than others. Most of them are pretty stiff but you can oil them for some decrease in friction. The plus is the diametric tolerances are pretty good according to my calipers. OD 22 +.04 -.04, ID 8 +.03 -.05 which is great and they work great for my low speed purposes

I love these for 3d prints! They dont spin forever like a fidget spinner would, but then again they shouldnt. The grease is viscous enough to prevent free/loose movement on the filament holder that I printed. If these spun easily and for a long time, I would have tangled filament! I suppose the grease could be replaced if you need a longer spinning bearing, but you might be better off getting another product.

Its 608 bearings in a pack of 20, its pretty much exactly what it says. Came in 2 of those plastic tubes that are barely better than just shrink wrapping them but thats fine, thats all I needed :)

You’re probably looking at these because they have a good price point, which they do. And that really low price point is the only reason they’re not even more lowly rated. The bearings come heavily coated with grease - enough that it actually hinders rotation. It seems like this is done because it also hides imperfections in the bearings. After clearing the bearings they rotate much more freely, but have a definite wobble to some of them. I compare them to a 20 year old set of real ABEC 7 bearings in my rollerblades and these are definitely not ABEC 7. So, if you’re looking for some bearings for a robotics project where they’re on an idler pulley, these are fine. But if you think you’re gonna drop these into a board or skates, keep looking.

These are labeled as 608ZZ and are double metal shielded. The ability to spin freely is somewhat limited for some reason. I dont know if the grease inside is too thick or what, but if youre looking for a bearing for a fidget spinner then you might want to look elsewhere. On the other hand, there is no play between the inner race and the balls and outer race, so I cant say they are sloppy loose either. I think they are a god value for the cost as long as you are not wanting something that is going to spin freely for any length of time.

These might be good for heavy projects but they dont turn very easily and they came really sticky all over like some cheap greese, idk. Im going to return these and go with a little more expensive set.

Clean these bearing out with acetone or similar solvent and they will work pretty good. My uses are under low Load, toys or low rpm applications so I can not comment on high load applications. The 5 star rating is my rating of these performance vs the price. If you are expecting high precision bearing you will need to spend more per bearing.

I ordered these to use as bearings for fidget spinners, I know. These were nice and cheap, and I wanted to give these a go. When they arrived, I noticed a couple had small spots of rust on the inside, so I emailed the company and they replaced them no questions asked and were very responsive and helpful. After decided the rust wasnt really that noticeable, I popped off both shields and then let them soak in gas so it would break loose all the grease (wasnt much). After letting them soak and shaking it a little, I took them out and let them dry. Afterwards, I sprayed them down with RemOil and took them inside. In a pretty light spinner, theyll spin for about a minute! I prefer these over the Bones Reds, simply because they spin longer and theyre cheaper. Overall, great product for the price and great customer service!