6018-2NSENR Nachi Bearing 90mm x 140mm x 24mm With Snap Ring (C clip) Made in Japan 6018-2NSENR Nachi Bearing with a Snap Ring, the 6018-2NSENR inner diameter is 90mm, the 6018-2NSENR outer diameter is 140mm, 6018-2NSENR width is 24mm.