Bearing 618/4 (SKF)

Deep groove ball bearings, single row 618/4

Bearing number : 618/4

Size (mm) : 4x9x2,5

Brand : SKF

Bore Diameter (mm) : 4

Outer Diameter (mm) : 9

Width (mm) : 2,5

Bearing dimensions and specification in SKF catalogue:

d - 4 mm

D - 9 mm

B - 2.5 mm

d₁ - - 5.2 mm

D₁ - - 7.5 mm

r_1,2 - min. - 0.1 mm

d_a - min. - 4.6 mm

D_a - max. - 8.4 mm

r_a - max. - 0.1 mm

Basic dynamic load rating - C - 0.423 kN

Basic static load rating - C₀ - 0.116 kN

Fatigue load limit - P_u - 0.005 kN

Reference speed - 140000 r/min

Limiting speed - 85000 r/min

Calculation factor - k_r - 0.015

Calculation factor - f₀ - 6.5

Mass bearing - 0.0007 kg

Designation

Bore Dia, mm

Outer Dia, mm: