22311AEXW33 Nachi Spherical Roller Bearing Bronze Cage 55mm x 120mm x 43mm Made in Japan 22311AEXW33 Nachi Spherical Roller Bearings, Bronze Cage, Made in Japan, the 22311AEXW33 inner diameter is 55mm, the 22311AEXW33 outer diameter is 120mm and the 22311AEXW33 width is 43mm.