1,ISO 9001-2000 2,low vibration,low noise, 3.high precision and durability 4,high accuracy,high speed 5.rustresisitiguarante deep groove ball bearingWe ... Z1V1,Z2V2,Z3V3We produce deep groove ball bearing have 8 series. 6000,6200,6300,6800 ,6900,16000 ,62200 and 62300 series.Deep groove ball bearings are the most representative ...