Some people would rather save the time and buy a whole hub instead of just the bearing and sometimes a loose disc can wear the disc seating area of the hub. Whatever the case, these new disc hubs are OEM quality that cost less than from the JD Implements. It is complete with bearing, snap ring, and wear ring. Be aware if replacing a hub you will also need a hub seal, as well as remove and replace the larger wear ring in the hub housing on the row unit. For John Deere 1890, 1895, 1590, 1560, 1860, 1690 and 1990 models. Replaces JD number AN281856 and N283291.