GW209PPB13, DS209TTR13 Disc Harrow Bearing 1 3/4" Round bore Disc Harrow Bearing,with rubber outside seals. Relubricable.Fits for Models FitsDisc: 210, 215, 220, 230, 235, 621, 630. Field Cultivators: 980. Mulch Finishers: 722, 724, 726. Disk Harrows: 660. Roller Harrows: 970. Mulch Tillers: 710, 712, 174. This bearing is also known as:FAFNIR#: GW209PPB13BCA#: DS209TTR13John Deere#: AA28184