6009-2NSENR Nachi Bearing 45mm x 75mm x 16mm With Snap Ring (C clip) Made in Japan 6009-2NSENR Nachi Bearing with a Snap Ring, the 6009-2NSENR inner diameter is 45mm, the 6009-2NSENR outer diameter is 75mm, the 6009-2NSENR width is 16mm.