Bearing NJ 307 ECM (SKF)

Cylindrical roller bearings, single row NJ 307 ECM

Bearing number : NJ 307 ECM

Size (mm) : 35x80x21

Brand : SKF

Bore Diameter (mm) : 35

Outer Diameter (mm) : 80

Width (mm) : 21

Bearing dimensions and specification in SKF catalogue:

d - 35 mm

D - 80 mm

B - 21 mm

d₁ - - 51 mm

D₁ - - 65.8 mm

F - 46.2 mm

r_1,2 - min. - 1.5 mm

r_3,4 - min. - 1.5 mm

s - 1.2 mm

d_a - min. - 43 mm

d_a - max. - 44 mm

d_b - min. - 53 mm

D_a - max. - 72.2 mm

r_a - max. - 1.5 mm

Basic dynamic load rating - C - 75 kN

Basic static load rating - C₀ - 63 kN

Fatigue load limit - P_u - 8.2 kN

Reference speed - 9500 r/min

Limiting speed - 11000 r/min

Calculation factor - k_r - 0.15

Mass bearing - 0.572 kg

Designation

Bore Dia, mm

Outer Dia, mm: