Disc opener for Bridger Planter. Press wheel for Tye Grain Drill. Also fits IHC Windrower, AC,JOHN DEERE, Case and other applications. This bearing is also known as: FAFNIR: 203KRR5 BCA: 203RRAR8 IHC: 611928R91 Tye: 522-20SP AC: 562134 DIMENSIONS: BORE: .515" Round O.D. 1.57" Flat IR Width: .72" OR Width: .472" WT:0.09kg PartNo. OEM NO. DESCRIPTION/APPLICATION 203KRR5 203RRAR8 BORE:.515"Round O.D.1.57"Flat IRWidth:.72" ORWidth:.472" Discopenerforbridgerplanter.PresswheelforTyegraindrill. Also fitsI HC Windrower,AC,JOHN DEERE,CASE and otherapplications.