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

I bought these to replace old bearings in my bandsaw guides. They work fine, though I did have one in the package with substandard machining and you could feel friction when spinning it. I tossed that one and the rest were good.

Came quickly and just ad described, durability is something Ive have to see. Size aas correct as well.

VERY Noisy and Rough. I seriously question the ABEC-7 rating. I got these because they were low cost, and you get what you pay for. As other reviewers noted, they come in plastic tubes of 10, and are coated in sticky grease. I wiped them clean, flushed them thoroughly with PB Blaster, 3-in-1 oil, air tool oil, WD-40.... they spin freely but feel very rough and are noisy. Rolling them in my fingers I can feel the roughness and I even go so far to say that it feels like there is dirt inside, they catch occasionally and are that rough. These will probably be a good solution for slow speed applications where noise and smoothness is not a concern. For smoother, higher speed operation, and quietness, Im going to spend a few more $ next time. I have the same size bearings from another manufacturer which were a higher cost, but there is a night and day difference in quality. Ill be saving these for something unimportant and testing purposes only. Nothing I build can accept this poor of quality for more than a brief period.

These are nice bearings, but despite the positive feedback, DO NOT use these for fidgets. I bought these so I could 3D print some spinners and resell them but these were just spinning disappointments. I gave 4 stars because this is advertised for skating, not fidgeting.

Got these for 3d print use, some are definitely smoother than others but for what i needed them for, perfectly fine. If using for a skateboard etc, might wanna seek something of better quality unless money is super tight

I bought these to use for some 3D prints. They are skateboard bearings, so they come pre-greased. I would have preferred to have non-greased bearings, but it makes sense that they would be greased.

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

This is a very high quality bearing. As others have stated, its got a good thick lubrication applied. Out of the box, they are perfect for heavy loads. For most tinkering and crafting where you want as little friction/resistance as possible, youd probably want to heat these a little and get rid of that lube to install a lighter weight lubrication. Other bearings might spin better out of the box, but the quality will probably be lower. Id recommend these bearings.

Used with 3d printing projects. Sizing seems accurate, and rotating action seems smooth with low friction. Looking forward to finding more uses and buying again, cause its FUN making stuff

The bearings I received were corroded (ok, they are carbon steel and not stainless) and felt greasy. Grease should not be leaking out of these things, even if they are merely shielded and not actually sealed. They were also rough to turn, as though the races and balls were badly pitted, or had dirt inside. I started to wonder if they were actually used, and salvaged from old skateboards. Thank goodness Amazon takes returns. I ended up buying a different bearing for 2x the price, still very cheap, and a much better product. Don’t waste your time with these.