23064EW33 Nachi Spherical Roller Bearing Bronze Cage 320mm x 480mm x 121mm Made in Japan 23064EW33 Nachi Spherical Roller Bearings, Bronze Cage, Made in Japan, the 23064EW33 inner diameter is 320mm, the 23064EW33 outer diameter is 480mm and the 23064EW33 width is 121mm.