100 Pack 608 2RS Bearings, 8x22x7mm RS Ball Bearing Grease Seal Assembly Roller Skateboard Bearings, for Electric Motor, Skateboards, Inline Skates, 3D Printer

I have used these on a couple of projects and they work perfectly.

Bought for 3d printing, work great!

Gets the job done

I was expecting cheesy bearings before they arrived. They're actually very good quality. I've been using them on 3d printed files and they install perfectly, and function as expected. The oil used on the bearings is a bit on the heavy side. But with time, it should all work out nicely I think. I would buy these same bearings for the same use again without hesitation.

I initially got these to try to work out in some 3D print designs. I should've looked at some first reviews, as I figured maybe I could try to make a fidget spinner. When I got these, I held the center and attempted to spin the outside. While it spun easily, it quickly stopped with no applied pressure to spin it. I quickly realized these wouldn't be that great to spin and have it easily continue spinning for a long time, but under weight or pressure I believe they'd spin easily and do well. In any case, they came in sets of plastic sleeves, which are great for storage, because that will keep dust and debris out (although the seals should be doing that anyway, but at least that will keep them altogether in untouched shape). They also appear to be decent with no defects as I've looked at a few of them. I think if you need these bearings for anything, this is one set that isn't going to break the bank, and will probably be more than you will ever need.

They work perfectly. First in the 3d prints just like it should.

Using these for a heavy duty drawer project. They do not measure 22mm o.d. As the description states they are about 1mm shirt of that. Worked great for my project

Exactly as described.