608RS Extended Bearing - Built-in Spacers 8x22x7mm608RS Ball Bearing with Extended Inner Race One Side Sealed, 8 x 22 x 7mm (13mm Inner Race Width) The 608RS extended inner race ball bearing is designed to simplify wheel setups by removing the need for spacers. Made from chrome steel and sealed on one side, it offers a rigid and smooth rolling solution for skate wheels, scooters, or other custom assemblies. Size: 8mm x 22mm x 7mm Extended inner race width: 13mm Outer ring width: 7mm One rubber seal