Bearing 4T-30306D (NTN)

Tapered roller bearings 4T-30306D

Bearing number : 4T-30306D

Size (mm) : 30x72x20.75

Brand : NTN

Bore Diameter (mm) : 30

Outer Diameter (mm) : 72

Width (mm) : 20,75

Bearing dimensions and specification in NTN catalogue:

d - 30 mm

D - 72 mm

T - 20,75 mm

B - 19 mm

C - 14 mm

ra1 max. - 1,5 mm

a - 23,5 mm

r min. - 1,5 mm

r1 min. - 1,5 mm

da min. - 38,5 mm

Da min - 55 mm

Da max. - 63,5 mm

db max. - 39 mm

Db min. - 68 mm

ra max. - 1,5 mm

Sa - 3 mm

Sb - 6,5 mm

Weight - 0,398 Kg

Basic dynamic load rating (C) - 48,5 kN

Basic static load rating (C0) - 51,5 kN

(Grease) Lubrication Speed - 5 000 r/min

(Oil) Lubrication Speed - 6 700 r/min

Calculation factor (e) - 0,83

Calculation factor (Y0) - 0,4

Calculation factor (Y2) - 0,73

Designation

Bore Dia, mm

Outer Dia, mm: