Bearing NU 421 M (SKF)

Cylindrical roller bearings, single row NU 421 M

Bearing number : NU 421 M

Size (mm) : 105x260x60

Brand : SKF

Bore Diameter (mm) : 105

Outer Diameter (mm) : 260

Width (mm) : 60

Bearing dimensions and specification in SKF catalogue:

d - 105 mm

D - 260 mm

B - 60 mm

D₁ - - 206.3 mm

F - 144.5 mm

r_1,2 - min. - 4 mm

r_3,4 - min. - 4 mm

s - 4.9 mm

d_a - min. - 124 mm

d_a - max. - 140 mm

d_b - min. - 147 mm

D_a - max. - 241 mm

r_a - max. - 3 mm

r_b - max. - 3 mm

Basic dynamic load rating - C - 501 kN

Basic static load rating - C₀ - 570 kN

Fatigue load limit - P_u - 64 kN

Reference speed - 2800 r/min

Limiting speed - 3400 r/min

Calculation factor - k_r - 0.15

Mass bearing - 17.27 kg

Designation

Bore Dia, mm

Outer Dia, mm: