Tapered roller bearings 4T-28990/28920
Bearing number : 4T-28990/28920
Size (mm) : 61.976x101.6x24.608 Brand : NTN d (mm) : 61,976 D (mm) : 101,6 B (mm) : 24,608 Bearing dimensions and specification in brand catalogue : d - 61,976 mm D - 101,6 mm T - 24,608 mm B - 24,608 mm C - 19,845 mm ra1 max. - 3,3 mm a - 1,7 mm Da - 90 mm db - 68 mm ra max. - 2 mm da - 72 mm Db - 97 mm Weight - 0,768 Kg Basic dynamic load rating (C) - 90,5 kN Basic static load rating (C0) - 134 kN (Grease) Lubrication Speed - 3 500 r/min (Oil) Lubrication Speed - 4 700 r/min Calculation factor (e) - 0,43 Calculation factor (Y0) - 0,78 Calculation factor (Y2) - 1,41
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