Bearing NU 2256 ECMA (SKF)

Cylindrical roller bearings, single row NU 2256 ECMA

Bearing number : NU 2256 ECMA

Size (mm) : 280x500x130

Brand : SKF

Bore Diameter (mm) : 280

Outer Diameter (mm) : 500

Width (mm) : 130

Bearing dimensions and specification in SKF catalogue:

d - 280 mm

D - 500 mm

B - 130 mm

D₁ - - 433 mm

F - 327 mm

r_1,2 - min. - 5 mm

s - 10.2 mm

d_a - min. - 300 mm

d_a - max. - 320 mm

d_b - min. - 331 mm

D_a - max. - 480 mm

r_a - max. - 4 mm

Basic dynamic load rating - C - 2200 kN

Basic static load rating - C₀ - 3450 kN

Fatigue load limit - P_u - 305 kN

Reference speed - 1200 r/min

Limiting speed - 1900 r/min

Calculation factor - k_r - 0.2

Mass bearing - 115 kg

Designation

Bore Dia, mm

Outer Dia, mm: