Description Riveted Flange Disc Harrow Bearing - 2-3/16" Round Bore - Replaces ST740B, DHU2316R211, I.H. 500 Disc Harrow This item is a suitable alternative for the following: 2631-FD211RB, A-FD211RBA, AFD211RBA, DHU2316R211, FB211RBA, FD211-RB, FD211TTRBAN/3AS, FD211RBA, ST740B, ST740A