Bearing 4T-2789/2720 (NTN)

Tapered roller bearings 4T-2789/2720

Bearing number : 4T-2789/2720

Size (mm) : 39.688x76.2x23.812

Brand : NTN

Bore Diameter (mm) : 39,688

Outer Diameter (mm) : 76,2

Width (mm) : 23,812

Bearing dimensions and specification in NTN catalogue:

d - 39,688 mm

D - 76,2 mm

T - 23,812 mm

B - 25,654 mm

C - 19,05 mm

ra1 max. - 3,3 mm

a - 7,8 mm

Da - 66 mm

db - 45 mm

ra max. - 3,5 mm

da - 52 mm

Db - 70 mm

Weight - 0,477 Kg

Basic dynamic load rating (C) - 73 kN

Basic static load rating (C0) - 90,5 kN

(Grease) Lubrication Speed - 5 100 r/min

(Oil) Lubrication Speed - 6 800 r/min

Calculation factor (e) - 0,3

Calculation factor (Y0) - 1,09

Calculation factor (Y2) - 1,98

Designation

Bore Dia, mm

Outer Dia, mm: