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

They wouldn’t last long if using them everyday They are not like USA or German bearings

Filled with some of the cheapest thickest grease they could get. Takes a ton of effort to get these spinning smooth. Cleaned out the grease with brake cleaner, and used an oil meant for ball bearings and they spin much better now, but nowhere near high quality bearings.

These came pretty sticky thanks to whatever grease they oack them with, not sure I can actually use these for anything than a filament guide for a 3d printer, like most have said here it seems some cleaning and wd40 goes a long way but jt doesnt make up for it and if you dont own wd40 for some reason then youl have to spend more money on a can of that first before using them.

They seem loose and wobbly and many of the shields protecting the bearings from dirt are dinged up like they were installed by hand by someone in a hurry. A bearing should only spin and not move in other directions. I plan to use them for wheels on parts bins, so theyll work for that, but I wouldnt bother with them again.

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.

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.

They roll. Several of them have dents in the steel seals, but honestly, as long as they turn smoothly, I dont care.

I needed ball bearings that ran smoothly for my application. These bearings are packed with grease and didnt roll smooth enough for my project. However, I think theyll be ok for other applications.

They seem to be gritty when turned.

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