Bearing 30228 (NTN)

Tapered roller bearings 30228

Bearing number : 30228

Size (mm) : 140x250x45.75

Brand : NTN

Bore Diameter (mm) : 140

Outer Diameter (mm) : 250

Width (mm) : 45,75

Bearing dimensions and specification in NTN catalogue:

d - 140 mm

D - 250 mm

T - 45,75 mm

B - 42 mm

C - 36 mm

ra1 max. - 2,5 mm

a - 47,5 mm

r min. - 3 mm

r1 min. - 3 mm

da min. - 158 mm

Da min - 219 mm

Da max. - 236 mm

db max. - 163 mm

Db min. - 237 mm

ra max. - 2,5 mm

Sa - 7 mm

Sb - 9,5 mm

Weight - 8,37 Kg

Basic dynamic load rating (C) - 375 kN

Basic static load rating (C0) - 485 kN

(Grease) Lubrication Speed - 1 400 r/min

(Oil) Lubrication Speed - 1 900 r/min

Calculation factor (e) - 0,43

Calculation factor (Y0) - 0,77

Calculation factor (Y2) - 1,39

Designation

Bore Dia, mm

Outer Dia, mm: