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

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

These are a great value and very easy spin. Perfect for a new roller for my 3d printer filament

Used to replace bearings in a rollator walker.

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

Pretty stiff and sticky out of the tube. A little wd-40 to clean them you and loosen them and they work just fine.

As others have mentioned, out-of-the box these bearings do not spin well at all. Theyre covered in a viscous oil thats most likely there to protect against rust. Just run some 3-in-One Multipurpose Oil through them a few times; this will both clear out the thick oil and lubricate the bearings as well. They seem to be just as high quality bearings as most others.

Thse seem well made. The dimensions are quite accurate. I found absolutely no rust. They spin amazingly well for the price. Out of 40, Ive had two that grated a bit, but none that didnt spin at all. As other reviewers mentioned, they come packed in heavy grease (probably to avoid corrosion), and you need to soak them in PB Blaster, WD-40, or some other light penetraiting oil. Im using these for 3D printer spool holders.

No tienen la medida correcta

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.

good price, bad quality,