100 Pack 608-2RS Skateboard Bearing, Rolling Bearings, 8x22x7mm 608rs Bearing

These bearings arent a bad deal if you know some things going in. I am using these for a filament drybox for keeping 3D printer filament dry. Out of the box, these have a sticky machine oil/grease on them (probably to prevent rust) and do not free spin very well. If you open the seal with a knife and blast them with white lithium aerosol, they spin very easily. It doesnt look like they are packed with any kind of lubricant inside the bearings.

A quality sack of roller bearings that’s ready to roll! Each one was still properly greased, serviceable, and ready to be installed. Have yet to find any tolerance or performance defects with them, a real plus with these bargain products. 5/5, tons of Cowbell, will buy again!

Multiple already rusty within packaging.

Got these for my rollerblades and theyre just OK. Im sure there are plenty of uses for bearings that dont need to be as efficient (electric skateboard, etc.) so if you have something like that, this would be a pretty stellar deal. However, for skates and regular skateboards that you use often, you may want to look elsewhere. UPDATE: After attaching them to my skates and riding them around a little bit, they seem to have loosened up and are now gliding much more efficiently. Raising rating from 3 to 4 stars.

These are nowhere near quality bearings, but they are great for makers who use bearings in their projects and need the quantity without breaking the bank.

When I first got into 3D printing, I didnt know these things existed. I quickly found, however, that the 608 is the bearing of choice for many 3D-print projects that need rotating parts. I really dont know how long it is going to take me to use all of these (so far Ive only used them in three projects), but I couldnt pass up the quantity price. They fit perfectly in every project that calls for a 608, they turn smoothly -- whats not to like.

Did not fit as expected, fits sloppily on the axle what about a half a millimeter of Clarence although this may have been partially my fault but

WayneChicago is right on with his review and the cleaning. I bought some ZZ bearings I thought were compete rubbish (ironically the same brand/seller without knowing) Then I bought some more expensive RS ones, that were nicer, but a lot more. I needed a lot for my project, I saw his review and the comments on cleaning and I took a chance. When I realized the rubbish ones were the same brand, I tried cleaning those first and I was very happy with the results. Heres my observation/experience. Originally I soaked them in WD40 for seconds, maybe a whole minute, but I thought the WD40 would cut that grease. I think with some, probably the ZZ ones I had, the grease hardens and particles become the grit. Soaking for 6+ hours certainly broke down the grease. I noticed 2 ZZ didnt spin as fast as the others, so I put them back to soak. While soaking, I tried shaking them up every now and then, mostly it just sat there. Upon taking them out, I spun them before drying, some didnt spin so great, but got better and better as I spun them. I think longer soaking may have helped, I probably should have let them soak all day. The set I got came in 2 paper boxes. Each box had 5 tubes of 10 bearings. The bearings were all uniform, and generously coated with some grease. They didnt spin very well in that condition, There were no deformities, there were no defects in the lot. My application is fidget spinners, and after cleaning and light oiling they spun exceptionally well. If you need to take them out of the box and use immediately these probably arent for you. Unless of course your application requires the grease. But if you dont mind cleaning and oiling. They are quite the bargain. Just remember if you clean them, do it safely and well ventilated and Im thinking the longer they soak the better. The cleaning liquid I used was dark blue/green after all the soaking.

Got a lot that were missing 1 bearing and some that didnt even have the clips closed. If you buy these, make sure you remove all the sides and check them before use. You will need to soak them in gas to degrease them and then use whatever lubricant you prefer.

First let me say I am a Forensic Engineer, next let me say that I have been in a wheelchair for almost 40 years. With that said, I have never in my life come across a product as bad as these!!!!! I purchased these less than 4 months ago and have had to replace them 4 times due to bearing failure. My application is not even a difficult one as all I am doing is putting them in the front tires of my wheelchair, yet they keep failing. They are cheap but you will spend more money replacing them than whatever you may have saved buying them. DO NOT BUY THESE UNLESS YOU WANT TO REPLACE THEM EVERY 1-2 MONTHS OR LESS.......THEY REALLY ARE THAT BAD.