Bearing 4T-30308D (NTN)

Tapered roller bearings 4T-30308D

Bearing number : 4T-30308D

Size (mm) : 40x90x25.25

Brand : NTN

Bore Diameter (mm) : 40

Outer Diameter (mm) : 90

Width (mm) : 25,25

Bearing dimensions and specification in NTN catalogue:

d - 40 mm

D - 90 mm

T - 25,25 mm

B - 23 mm

C - 17 mm

ra1 max. - 1,5 mm

a - 29,5 mm

r min. - 2 mm

r1 min. - 1,5 mm

da min. - 50 mm

Da min - 71 mm

Da max. - 81,5 mm

db max. - 50 mm

Db min. - 86,5 mm

ra max. - 2 mm

Sa - 3 mm

Sb - 8 mm

Weight - 0,738 Kg

Basic dynamic load rating (C) - 77 kN

Basic static load rating (C0) - 85,5 kN

(Grease) Lubrication Speed - 3 900 r/min

(Oil) Lubrication Speed - 5 200 r/min

Calculation factor (e) - 0,83

Calculation factor (Y0) - 0,4

Calculation factor (Y2) - 0,73

Designation

Bore Dia, mm

Outer Dia, mm: