608 Full Ceramic Skate Bearing ZrO2/Si3N4 8x22x7

VXB™ Brand 608 Full Ceramic Skate Bearing Zirconium Oxide Rings with silicon nitride Balls One Bearing 608 Full Ceramic Skate ball bearing that has zirconia rings ZrO2 and silicon nitride Si3N4 works in all skate applications like skateboard inline skate rollerblades roller hockey and even the 8mm quad rollers. These bearings can be used in the inline skate rollerblade and roller hockey. These bearings are to be used for races and competitions you will need 8 bearings for skateboards and 16 for all other skate applications. Item: 608 skate bearings Type: Full Ceramic Bearing Size: 8mm x 22mm x 7mm Dimensions: 8*22*7 mm/Metric ID (inner diameter)/Bore=8mm OD (outer diameter)=22mm Width/Height/thickness=7mm Inner/outer races: ZrO2 (zirconium oxide) Ceramic Balls: Si3n4 (silicon nitride) Ceramic Quantity: One ball bearing Cage: PTFE Closures: Open 608 Full Ceramic Skate Bearing ZrO2/Si3N4 8x22x7 Kit7825