Bearing NJ 248 MA (SKF)

Cylindrical roller bearings, single row NJ 248 MA

Bearing number : NJ 248 MA

Size (mm) : 240x440x72

Brand : SKF

Bore Diameter (mm) : 240

Outer Diameter (mm) : 440

Width (mm) : 72

Bearing dimensions and specification in SKF catalogue:

d - 240 mm

D - 440 mm

B - 72 mm

d₁ - - 313 mm

D₁ - - 365 mm

F - 295 mm

r_1,2 - min. - 4 mm

s - 3.4 mm

d_a - min. - 257 mm

d_a - max. - 288 mm

d_b - min. - 317 mm

D_a - max. - 423 mm

r_a - max. - 3 mm

Basic dynamic load rating - C - 952 kN

Basic static load rating - C₀ - 1370 kN

Fatigue load limit - P_u - 129 kN

Reference speed - 1600 r/min

Limiting speed - 2200 r/min

Calculation factor - k_r - 0.15

Mass bearing - 53 kg

Designation

Bore Dia, mm

Outer Dia, mm: