... ,OEM/ODM Custom made ball bearingMaterial: chrome steel, Stainless steel, Ceramic(ZrO2, Si3N4), Plastic, Carbon steel, etc.Surface Special finish: Zinc plated, nickel ... costVarious sizes and designs. Precision RateP0,P6,P5,P4.p2cageStamped steel cage or solid brass cage Shield/closureOpen ball bearing, Z ...