Bearing 7228 (KOYO)

Angular contact ball bearings 7228

Bearing number : 7228

Size (mm) : 140x250x42

Brand : KOYO

Bore Diameter (mm) : 140

Outer Diameter (mm) : 250

Width (mm) : 42

Bearing dimensions and specification in KOYO catalogue:

d - 140 mm

D - 250 mm

B - 42 mm

C - 42 mm

Angle (α) - 30 °

a - 77,3 mm

r min. - 3 mm

r1 min. - 1,1 mm

da min. - 154 mm

Da max. - 236 mm

ra max. - 2.5 mm

Weight - 7,76 Kg

Basic dynamic load rating (C) - 218 kN

Basic static load rating (C0) - 234 kN

(Grease) Lubrication Speed - 2900 r/min

(Oil) Lubrication Speed - 3600 r/min

Designation

Bore Dia, mm

Outer Dia, mm: