Surface Roughness : Ra 0.2 Torque Capacity : 10x22x6mm Structure : deep groove Model Number : F6900ZZ Material : Chrome Steel GCr15 Bearing Material : Chrome Steel GCr15 Ball Material : Chrome Steel GCr15 Bearing Model : F6900ZZ Bearing Sizes : 10x22x6mm Bearing Type : Flange Bearing Bearing Grade : ABEC-7 Welcome to Lingfeng Store