Tapered roller bearings 4T-2687/2631
Bearing number : 4T-2687/2631
Size (mm) : 25.4x66.421x23.812 Brand : NTN d (mm) : 25,4 D (mm) : 66,421 B (mm) : 23,812 Bearing dimensions and specification in brand catalogue : d - 25,4 mm D - 66,421 mm T - 23,812 mm B - 25,433 mm C - 19,05 mm ra1 max. - 1,3 mm a - 9,3 mm Da - 58 mm db - 31,5 mm ra max. - 1,3 mm da - 33,5 mm Db - 60 mm Weight - 0,442 Kg Basic dynamic load rating (C) - 64,5 kN Basic static load rating (C0) - 72,5 kN (Grease) Lubrication Speed - 6 200 r/min (Oil) Lubrication Speed - 8 200 r/min Calculation factor (e) - 0,25 Calculation factor (Y0) - 1,3 Calculation factor (Y2) - 2,36
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