22234EW33K Nachi Spherical Roller Bearing Bronze Cage : Tapered Bore Made in Japan 22234EW33K Nachi Spherical Roller Bearings, Bronze Cage, the bearing has a tapered inner ring bore (K), Made in Japan, the 22234EW33K inner diameter is 170mm, the 22234EW33K outer diameter is 310mm and the 22234EW33K width is 86mm.