6312-2NSENR Nachi Bearing 60mm x 130mm x 31mm With Snap Ring (C clip) Made in Japan 6312-2NSENR Nachi Bearing with a Snap Ring, the 6312-2NSENR inner diameter is 60mm, the 6312-2NSENR outer diameter is 130mm, 6312-2NSENR width is 31mm.