Tapered roller bearings 31328JR
Bearing number : 31328JR
Size (mm) : 140x300x77 Brand : KOYO d (mm) : 140 D (mm) : 300 B (mm) : 77 Bearing dimensions and specification in brand catalogue : d - 140 mm D - 300 mm T - 77 mm B - 70 mm C - 47 mm a - 93,8 mm r min. - 5 mm r1 min. - 4 mm r2 min. - 4 mm da min. - 162 mm da max - 167 mm Da min - 254 mm Da max. - 282 mm db max. - 167 mm Db min. - 280 mm ra max. - 4 mm rb max. - 3 mm Db - 280 mm Weight - 23,3 Kg Basic dynamic load rating (C) - 674 kN Basic static load rating (C0) - 865 kN (Grease) Lubrication Speed - 1100 r/min (Oil) Lubrication Speed - 1500 r/min Calculation factor (e) - 0,83 Calculation factor (Y0) - 0,4 Calculation factor (Y1) - 0,73
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