Tapered roller bearings 4T-30210
Bearing number : 4T-30210
Size (mm) : 50x90x21.75 Brand : NTN d (mm) : 50 D (mm) : 90 B (mm) : 21,75 Bearing dimensions and specification in brand catalogue : d - 50 mm D - 90 mm T - 21,75 mm B - 20 mm C - 17 mm ra1 max. - 1,5 mm a - 19,5 mm r min. - 1,5 mm r1 min. - 1,5 mm da min. - 58,5 mm Da min - 79 mm Da max. - 81,5 mm db max. - 58 mm Db min. - 85 mm ra max. - 1,5 mm Sa - 3 mm Sb - 4,5 mm Weight - 0,563 Kg Basic dynamic load rating (C) - 77 kN Basic static load rating (C0) - 93 kN (Grease) Lubrication Speed - 4 000 r/min (Oil) Lubrication Speed - 5 300 r/min Calculation factor (e) - 0,42 Calculation factor (Y0) - 0,79 Calculation factor (Y2) - 1,43
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