22230EW33K Nachi Spherical Roller Bearing Bronze Cage : Tapered Bore Made in Japan 22230EW33K Nachi Spherical Roller Bearing, Bronze Cage, the bearing has a tapered inner ring bore (K), Made in Japan, the 22230EW33K inner diameter is 150mm, the 22230EW33K outer diameter is 270mm and the 22230EW33K width is 73mm.