Review on 🛼 High-quality Wellgo 608-2RS Ball Bearings with Double Rubber Sealed Shield for Skateboards, Inline Skates, Scooters, and Roller Blades - 10pcs by Trey Ali

Excellent bearings for the price. Didn't expect ABEC 11 at this price! Very smooth and with no noticeable play or portability issues. They are very well lubricated. So if you want them to spin for a long time, like in a spinner, then either wash out a heavier grease or buy other bearings. Ideal for 8mm shaft. (Actually the shaft is 7.98mm long. The inner diameter of the bearing is about 8.02mm). The other 9 bearings were measured and they were all within 22 x 8 x 7mm + -0.06mm. While they're not ISO or ABEC certified (if you're a skater), they seem to work great for my application, which is light (<50lbs) hobbyist use. I believe they should work well in both power tools and heavier applications other than YMMV. very satisfied