608 Full Complement Skate Ceramic Bearing 8x22x7 Si3N4 Miniature Ball Description Full Ceramic Ball Bearings 608 8 x 22 x 7 mm Silicon Nitride Silicon Nitride Full Ceramic 608 Ball Bearings, the most common size in skate business is 608, 8mm x 22mm x 7mm, the inner diameter is 8, outer diameter is 22 and the width is 7, this is a popular size that could be used in many applications, Bearing is made of Silicon Nitride Ceramic. Item: Ball bearings Type: Silicon Nitride Full Ceramic Dimensions: 8226 mm/Metric ID (inner diameter)/Bore=8mm OD (outer diameter)=22mm Width/Height/thickness=6mm Size: 8mm x 22mm x 7mm Inner/outer races: Si3N4 Ceramic (Silicon Nitride) Balls: Si3N4 Ceramic (Silicon Nitride) Quantity: One ball bearing Cage: No Cage Non-Magnetic Non-Conductive VXB Category: Full ceramic bearings Features: Item: Ball bearings Type: Silicon Nitride Full Ceramic Dimensions: 8*22*6 mm/Metric ID (inner diameter)/Bore=8mm OD (outer diameter)=22mm Product Details: Brand: VXB Material: Nitride,Ceramic,Silicon Item Weight: 13.61 Grams Bearing Number: 608 Item Thickness: 7 Millimeters Item Weight ‏ : ‎ 0.48 Ounces Date First Available ‏ : ‎ May 27, 2009 Manufacturer ‏ : ‎ VXB Best Sellers Rank: #801,425 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #9,589 in Deep-Groove Ball Bearings #9,589 in Deep-Groove Ball Bearings