23044EW33K Nachi Spherical Roller Bearing Bronze Cage : Tapered Bore Made in Japan 23044EW33K Nachi Spherical Roller Bearings, Bronze Cage, the bearing has a tapered inner ring bore (K), Made in Japan, the 23044EW33K inner diameter is 220mm, the 23044EW33K outer diameter is 340mm and the 23044EW33K width is 90mm.