THE OG Roller Skate Bearings These guys are a classic. Made in China and twice inspected for quality, the Rollerbones are a fast and precise bearing at an awesome price point. Comes in a pack of 16 bearings, enough for 8 wheels. Standard skateboard / roller skate size of 608. The bearing size 608 measures 22mm (outer diameter) x 7mm (width) x 8mm (inner diameter/axle). Rollerbones Contents Every pack of bearings comes with 16 bearings (enough for 8 wheels). Bearing shields are non-contact rubber and easily removable. Specifications Axle Size (ID): 8mm ABEC Rating: Skate Rated Special Features: Reds are time tested and are a favorite among all skaters. Frequently Asked Questions Are Bones Rollerbones good? Yes! These are some of the best bang for your buck bearings out there. Bones has been a name in bearings since nearly the inception of skate bearings. They know what's up and Rollerbones are no different. Do I need spacers? Maybe. The best way to check is by taking apart your existing wheels and seeing what kind of spacers/bearings you have in there now. You are going to want to match that. How do I install the bearings? This depends on your skates, but generally you can use the axle on your skates to pry the bearing out. Just be careful not to damage the seals. These are delicate and can be damaged easily. See the video below for a guide. Haw many wheels does this pack work on? This is a pack of 16 bearings and you will need 2 bearings per wheel. Doing some quick math, this pack can be used in a total of 8 wheels. What's the difference between Rollerbones and Bones Reds? Rollerbones are a more affordable alternative to Bones Reds. Bones Reds come with instuctions and a sticker. Rollerbones are just the box and bearings. The quality of the two bearings is fairly comparable, however, Bones Reds is by far the best selling. Are Rollerbones good for Derby? YES! Rollerbones are designed for roller skate derby. These are great roller skate bearings for the money.