6010-2NSENR Nachi Bearing With Snap Ring (C clip) 50mm x 80mm x 16mm Made in Japan 6010-2NSENR Nachi Bearing, Made in Japan, with a Snap Ring, here are the dimensions of the 6010-2NSENR, the 6010-2NSENR inner diameter is 50mm, the 6010-2NSENR outer diameter is 80mm, 6010-2NSENR width is 16mm.