6006-2NSENR Nachi Bearing With Snap Ring (C clip) 30mm x 55mm x 13mm Made in Japan 6006-2NSENR Nachi Bearing with a Snap Ring, the 6006-2NSENR inner diameter is 30mm, the 6006-2NSENR outer diameter is 55mm, 6006-2NSENR width is 13mm.