22256EW33K Nachi Spherical Roller Bearing Bronze Cage : Tapered Bore Made in Japan 22256EW33K Nachi Spherical Roller Bearings, Bronze Cage, the bearing has a tapered inner ring bore (K), Made in Japan, the 22256EW33K inner diameter is 280mm, the 22256EW33K outer diameter is 500mm and the 22256EW33K width is 130mm.