Dimensions = 8mm x 22mm x7mm
(Inner Diameter = 8mm,Outer Diameter = 22mm,Width = 7mm)
Material of Inner & Outer Ring&Balls = Super good Chrome steel(GCr15) rings
Material of the Retainer = white Nylon Cage, specially designed, frictionless and easy to clean
Material and Color of Seal = Single Side white rubber seal , less friction, faster speed!
Numbers of Balls = 7 silicone nitride ceramic si3n4 balls
Impact Load = 195kg~240kg
Features = Professional skate competition bearing,Great fast Speed,Professional inline roller skating bearing,Very stable,low noise, anti-dust...
Contents of 1 lot = 8 bearings+ 4 spacers+sticker+instruction +package box