Bearing NU 309 ECM (SKF)

Cylindrical roller bearings, single row NU 309 ECM

Bearing number : NU 309 ECM

Size (mm) : 45x100x25

Brand : SKF

Bore Diameter (mm) : 45

Outer Diameter (mm) : 100

Width (mm) : 25

Bearing dimensions and specification in SKF catalogue:

d - 45 mm

D - 100 mm

B - 25 mm

D₁ - - 83.2 mm

F - 58.5 mm

r_1,2 - min. - 1.5 mm

r_3,4 - min. - 1.5 mm

s - 1.7 mm

d_a - min. - 54 mm

d_a - max. - 56 mm

d_b - min. - 60 mm

D_a - max. - 91.4 mm

r_a - max. - 1.5 mm

r_b - max. - 1.5 mm

Basic dynamic load rating - C - 112 kN

Basic static load rating - C₀ - 100 kN

Fatigue load limit - P_u - 12.9 kN

Reference speed - 7500 r/min

Limiting speed - 8500 r/min

Calculation factor - k_r - 0.15

Mass bearing - 0.998 kg

Designation

Bore Dia, mm

Outer Dia, mm: