Tapered roller bearings 30317DU
Bearing number : 30317DU
Size (mm) : 85x180x44.5 Brand : NTN d (mm) : 85 D (mm) : 180 B (mm) : 44,5 Bearing dimensions and specification in brand catalogue : d - 85 mm D - 180 mm T - 44,5 mm B - 41 mm C - 28 mm ra1 max. - 2,5 mm a - 56 mm r min. - 4 mm r1 min. - 3 mm da min. - 103 mm Da min - 143 mm Da max. - 166 mm db max. - 103 mm Db min. - 169 mm ra max. - 3 mm Sa - 6 mm Sb - 16,5 mm Weight - 4,85 Kg Basic dynamic load rating (C) - 247 kN Basic static load rating (C0) - 293 kN (Grease) Lubrication Speed - 1 900 r/min (Oil) Lubrication Speed - 2 500 r/min Calculation factor (e) - 0,83 Calculation factor (Y0) - 0,4 Calculation factor (Y2) - 0,73
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