Tapered roller bearings 30248R
Bearing number : 30248R
Size (mm) : 240x440x79 Brand : KOYO d (mm) : 240 D (mm) : 440 B (mm) : 79 Bearing dimensions and specification in brand catalogue : d - 240 mm D - 440 mm T - 79 mm B - 72 mm C - 60 mm a - 82,7 mm r min. - 5 mm r2 min. - 4 mm da min. - 262 mm da max - 287 mm Da min - 377 mm Da max. - 422 mm Db min. - 409 mm ra max. - 4 mm rb max. - 3 mm Weight - 49,5 Kg Basic dynamic load rating (C) - 1230 kN Basic static load rating (C0) - 1790 kN (Grease) Lubrication Speed - 730 r/min (Oil) Lubrication Speed - 980 r/min Calculation factor (e) - 0,42 Calculation factor (Y0) - 0,79 Calculation factor (Y1) - 1,43
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