21317EXW33 Nachi Spherical Roller Bearing Steel Cage 85mm x 180mm x 41mm Made in Japan 21317EXW33 Nachi Spherical Roller Bearing, Steel Cage, Made in Japan, the 21317EXW33 inner diameter is 85mm, the 21317EXW33 outer diameter is 180mm and the 21317EXW33 width is 41mm.