608 ZZ Ball Bearings(10PCS), 608ZZ Metal Double Shielded Miniature Deep Groove Skateboard Ball Bearings (8mm x 22mm x 7mm)

they are actually a bit smaller than the ones theyre replacing. small enough that they wouldnt fit on the 8mm bolt/axle of the walker i was working on. I replaced the bolt with a 5/16 and made it work. they are undersized by a few thousandths of an inch. the OD is also smaller than the original ones although they have the exact same number designation on them! China, you need to check your calipers and machines!

These arent awesome. They worked for what I needed them for (a filament holder for my 3d printer). I didnt need too much spin for that. Then with all the extras my kids thought it would be fun to print a fidget spinner. It doesnt spin well for that. But they did get the job done.

worked great for my 10 inch craftsman bandsaw blade guilds

Not sure what the tolerances of these are supposed to be but of the 10 in the pack the internal diameter varied considerably. 6 of them fitted easily on the posts while the other 4 would not without forcing them. I had no intention of doing this as it would have been a problem removing them. I therefore had to mix some of the old worn bearings with these new ones. very disappointing.

As stated in description

Good

Use this bearings for my 3D printer filament roller

Not *nice* bearings but they work perfectly fine, especially at the price point

Llego en buen estado, lo compré para regalarlo pero debe bien me gusto

They fit perfectly and smooth operation