Nachi Bearings 6020-2NSENR 100mm x 150mm x 24mm With Snap Ring (C clip) Made in Japan 6020-2NSENR Nachi Bearing, Made in Japan, with a Snap Ring, here are the dimensions of the 6020-2NSENR, the 6020-2NSENR inner diameter is 100mm, the 6020-2NSENR outer diameter is 150mm, 6020-2NSENR width is 24mm.