22228EXW33K Nachi Spherical Roller Bearing Steel Cage : Tapered Bore Made in Japan 22228EXW33K Nachi Spherical Roller Bearing, Steel Cage, the bearing has a tapered inner ring bore (K), Made in Japan, the 22228EXW33K inner diameter is 140mm, the 22228EXW33K outer diameter is 250mm and the 22228EXW33K width is 68mm.