... 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 ... 6400, 1600; Thin-ring: 61800, 61900 ••Application examples: electrical motors, general machinery, industrial gearboxes, pumps, agricultural machinery, etc. Good quality auto ...