Good quality auto bearing 1)Chrome steel material 2)Low noise, low vibration 3)Low price,good quality Good quality auto bearing 1)Chrome steel material2)Low noise, low vibration3)Low price,good quality 4)Demension(d,D,B): 12mm,28mm,8mmsimple in strucure popularly used in many applications high limiting speed and low noise complete inventoryDeep groove ball bearings are the most representative and ...