... ,4200 series.5), Special bearing & un-standard bearing;6). Needle roller bearings(HK, NK, NA, NAK, RNA,AX BK...)7). Cylindrical ... roller bearing(NJ, NUJ, NU, NNU...)8). Spherical roller bearing(22200 series, 22300 series, 23000 series ... Unit(UCP, UC, UK, UCT, UCF, SA, SB..)10). Tapered roller bearing(30200, 30300, 32300, 32200, 32010, 33000, LM- inch bearings ...