Tapered roller bearings 4T-2580/2520
Bearing number : 4T-2580/2520
Size (mm) : 31.75x66.421x25.4 Brand : NTN d (mm) : 31,75 D (mm) : 66,421 B (mm) : 25,4 Bearing dimensions and specification in brand catalogue : d - 31,75 mm D - 66,421 mm T - 25,4 mm B - 25,357 mm C - 20,638 mm ra1 max. - 3,3 mm a - 9,1 mm Da - 57 mm db - 37,5 mm ra max. - 0,8 mm da - 38,5 mm Db - 62 mm Weight - 0,409 Kg Basic dynamic load rating (C) - 69 kN Basic static load rating (C0) - 81,5 kN (Grease) Lubrication Speed - 5 700 r/min (Oil) Lubrication Speed - 7 600 r/min Calculation factor (e) - 0,27 Calculation factor (Y0) - 1,21 Calculation factor (Y2) - 2,19
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