Bearing 30228JR (KOYO)

Tapered roller bearings 30228JR

Bearing number : 30228JR

Size (mm) : 140x250x45.75

Brand : KOYO

Bore Diameter (mm) : 140

Outer Diameter (mm) : 250

Width (mm) : 45,75

Bearing dimensions and specification in KOYO catalogue:

d - 140 mm

D - 250 mm

T - 45,75 mm

B - 42 mm

C - 36 mm

a - 49,4 mm

r min. - 4 mm

r2 min. - 3 mm

da min. - 158 mm

da max - 163 mm

Da min - 219 mm

Da max. - 236 mm

Db min. - 237 mm

ra max. - 3 mm

rb max. - 2,5 mm

Weight - 8,97 Kg

Basic dynamic load rating (C) - 420 kN

Basic static load rating (C0) - 570 kN

(Grease) Lubrication Speed - 1500 r/min

(Oil) Lubrication Speed - 1900 r/min

Calculation factor (e) - 0,44

Calculation factor (Y0) - 0,76

Calculation factor (Y1) - 1,38

Designation

Bore Dia, mm

Outer Dia, mm: