Bearing 7228DB (NACHI)

Angular contact ball bearings 7228DB

Bearing number : 7228DB

Size (mm) : 140x250x42

Brand : NACHI

Bore Diameter (mm) : 140

Outer Diameter (mm) : 250

Width (mm) : 42

Bearing dimensions and specification in NACHI catalogue:

d - 140 mm

D - 250 mm

B - 42 mm

C - 42 mm

Angle (α) - 30 °

a - 35.3 mm

r min. - 3 mm

r1 min. - 1.1 mm

2B - 84 mm

da min. - 147 mm

Da max. - 243 mm

ra max. - 1 mm

Weight - 8.78 Kg

Basic dynamic load rating (C) - 345 kN

Basic static load rating (C0) - 525 kN

(Grease) Lubrication Speed - 1800 r/min

(Oil) Lubrication Speed - 2400 r/min

Designation

Bore Dia, mm

Outer Dia, mm: