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

All Bearings making noise and 2 sets of bearing stuck

I love these for 3d prints! They dont spin forever like a fidget spinner would, but then again they shouldnt. The grease is viscous enough to prevent free/loose movement on the filament holder that I printed. If these spun easily and for a long time, I would have tangled filament! I suppose the grease could be replaced if you need a longer spinning bearing, but you might be better off getting another product.

Seems to be solid standard 608 bearings, though they are packaged with heavy grease an do NOT spin freely. You have to take time an resources to properly clean them out with a solvent before RE-greasing or oiling them. Out of the box, they are stiff to roll an notchy. Once I put them in a sonic bath an regreased them, they were fine. Much like standard mid-quality sk8 bearings. For the price, sure, theyre fine enough for skating, but for 3D print applications, they are not plug n play, you need to coddle them, therefore, I took a star or two off the score. Better off going to your nearest skate shop for ready to ride bearings.

These are an exact fit bearing for the FL Sun cube 3D printer I had. Unfortunately the quality, although better than the originals, still included ones with defects. I replaced the four bearings and found that three of the four had bad spots in them. I sorted through the first package of ten and found that 4 were bad, with a spot that clicked when the shaft was turned. Of the six remaining, I chose the best four and they are currently working fine. Note. These are NOT sealed bearings and do leak lubricant. However, because of this, they can be flushed and re-lubticated. I do not recommend them for Inline skates or any machinery that is precision, critical, or may be exposed to contamination such as dust and dirt. They are low cost and low quality. OK for the price, but thats all.

Pros: - Cheap - Comes with shipping oil to keep out any grit/grime Cons: - The QC is awful I purchased two packs of these to use for a project and found that 10 of the 40 bearings had issues. Many were minor such as small dents/dings in the shields, but there were a few where the entire inner or outer bearing piece has been chewed to bits. If youre going to buy these, make sure you buy extras since about a quarter of them might be faulty. Since this was fulfilled by Amazon, Im unable to contact the seller for replacements and dont want to return the rest. Still three stars though, you get what you pay for.

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.

It works acceptable, but the lubrication used was gummy and sticky. The packaging was just a plastic tube that doesnt really seal which wouldnt be a problem if they used better lubricant. I havent used them for any demanding tasks, but they work for random projects

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

Like others mentioned, these come packed in grease and nicely stacked in tubes. Once you spray a dab of WD40 on them they spin very freely and the dimensions are accurate from what I can see. I did receive one that was slightly damaged but the rest were all good. I would buy these again.

They come coated in thick greasy shmoo and dont spin well at all. but a few liberal sprays of WD-40, spinning it a few times in-between sprays, and they spin real nice. about 4 out of 5 spin well so far, some have what feels like metal bits in them that prevents super smooth spin. i havent taken the lid off of them, just sprayed the sides, and the WD-40 works its way inside. for 10$ getting 20 of these, even if only half worked, i would have been happy. im using these for robotics, not skateboards. packaging is a little lacking, but ive seen worse