Bearing NJ 228 ECJ (SKF)

Cylindrical roller bearings, single row NJ 228 ECJ

Bearing number : NJ 228 ECJ

Size (mm) : 140x250x42

Brand : SKF

Bore Diameter (mm) : 140

Outer Diameter (mm) : 250

Width (mm) : 42

Bearing dimensions and specification in SKF catalogue:

d - 140 mm

D - 250 mm

B - 42 mm

d₁ - - 179 mm

D₁ - - 215.78 mm

F - 169 mm

r_1,2 - min. - 3 mm

r_3,4 - min. - 3 mm

s - 2.5 mm

d_a - min. - 154 mm

d_a - max. - 165 mm

d_b - min. - 182 mm

D_a - max. - 235 mm

r_a - max. - 2.5 mm

Basic dynamic load rating - C - 450 kN

Basic static load rating - C₀ - 510 kN

Fatigue load limit - P_u - 57 kN

Reference speed - 2800 r/min

Limiting speed - 3200 r/min

Calculation factor - k_r - 0.15

Mass bearing - 8.62 kg

Designation

Bore Dia, mm

Outer Dia, mm: