Tapered roller bearings 30256
Bearing number : 30256
Size (mm) : 280x500x89 Brand : NSK d (mm) : 280 D (mm) : 500 B (mm) : 89 Bearing dimensions and specification in brand catalogue : d - 280 mm D - 500 mm T - 89 mm B - 80 mm C - 67 mm a - 98,5 mm r min. - 6 mm r1 min. - 5 mm da min. - 313 mm Da min - 436 mm Da max. - 478 mm db max. - 339 mm Db min. - 462 mm ra max. - 5 mm rb max. - 4 mm Weight - 66,3 Kg Basic dynamic load rating (C) - 1240 kN Basic static load rating (C0) - 1900 kN (Grease) Lubrication Speed - 630 r/min (Oil) Lubrication Speed - 850 r/min Calculation factor (e) - 0,44 Calculation factor (Y0) - 0,74 Calculation factor (Y1) - 1,4
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