21313EXW33K Nachi Spherical Roller Bearing Steel Cage : Tapered Bore 65mm x 140mm x 33mm Made in Japan 21313EXW33K Nachi Spherical Roller Bearings, Steel Cage, the bearing has a tapered inner ring bore (K), Made in Japan, the 21313EXW33K inner diameter is 65mm, the 21313EXW33K outer diameter is 140mm and the 21313EXW33K width is 33mm.