6204-2NSENR Nachi Bearings With Snap Ring (C clip) 20mm x 47mm x 14mm Made in Japan 6204-2NSENR Nachi Bearing with a Snap Ring, the 6204-2NSENR inner diameter is 20mm, the 6204-2NSENR outer diameter is 47mm, the 6204-2NSENR width is 14mm.