... ranges as follows:1),Deep groove ball 2)self-anligning bearings,(1200,1300,2200,2300 series)3)stainless steel ball ... ,4200 series.5), Special bearing & un-standard bearing;6). Needle roller bearings(HK, NK, NA, NAK, RNA,AX BK...)7). Cylindrical ... , UCF, SA, SB..)10). Tapered roller bearing(30200, 30300, 32300, 32200, 32010, 33000, LM- inch bearings..)11). Thrust ball bearing(51100, 51200 ...