BYSUISAN 608ZZ ABEC 3 P6 Skate Bearings for Roller Inline Skate Wheel Skateboard Bearings Roller Blades Scooters 3D Print Rollerblades Chrome Steel Deep Groove Ball Bearings (20 Pack, 8mmx22mmx7mm)

These are actually decent if you need them to not be garbage. Are they abec 7? No but thats not what you are here for, is it? These are quality bulk bearings that dont feel or sound like rattle cages and have a good finish on them.

They are bearings. I spot checked and they are dimensionally accurate and roll smoothly. I chose these because they actually list an ABEC rating. Others show pictures of ABEC 7 bearings, but that is not what you will get. ABEC 7 and above bearings become costly. Even NSK bearings in this size are usually only ABEC 3. Based on what I see, I think these are genuine ABEC 3 bearings and probably a grade up over the other cheap ones on amazon.

I am using these to replace the guide bearings on a Band Saw. I only need 4 but this was far cheaper than buying 6 from the saw manufacturer. These bearings fit perfectly. Tolerances seem to be good. There is no noticeable slop. As pointed in other reviews the ABEC 3 is not stamped on so I really don't know if I they are really to that tolerance or not but they should work well for my purposes.The only minor issue is they don't spin freely right out of the box. This is well documented and is because of the grease applied in manufacturing. They say that this will go away through use but for my application I need them to spin quite freely right away. There are some YouTube videos which give ideas on how to fix this but they used water and I really didn't want to put water on metal. First, I tried soaking them in pure Acetone. This made them better but they still were a bit sluggish. I had a large can of Industrial Degreaser that I had to buy when I bought my Table saw to remove the packing grease. I simply sprayed a liberal amount on each side, waited a few minutes, wiped the bearings clean with a paper towel and viola -- spun freely and easily.

Good buy.

So far it seems to be a great product. Will update after some time on performance.Quick delivery. In fact I ordered second pack after the first one. The shipping broke the plastic case, but it is not under seller’s control.

Listing said these were ABEC 3 but they are not.They do not spin well at all and make noise. They do have 608ZZ stamped on them but not ABEC 3. I talked to the lady that runs our local rink and she said they should have ABEC 3 stamped on them if that is truly what they are.So I would not recommend buying these.

I ordered a set of 20 and got five and they were not even in a package this is how they came.

I use a lot of bearings 3d printing little nik naks and these were a good deal. They work just fine for my needs.