... thrust and radial loads.Note: When replacing bearings, replace both cone and cup to ensure optimum performance and longer life.Taper ... Roller Bearing Cone, Inch Series, Bore Dia 1.000 In, Cone Width 0.580 In, Max Shaft ... your inquiry. Photo of our factory: NTN Taper Roller Bearing Cone, 1.000 Bore Inch NTN