22318EXW33 Nachi Spherical Roller Bearings Steel Cage Made in Japan 22318EXW33 Nachi Spherical Roller Bearings, Steel Cage, Made in Japan, the 22318EXW33 inner diameter is 90mm, the 22318EXW33 outer diameter is 190mm and the 22318EXW33 width is 64mm.