Bearing W 639-2Z (SKF)

Deep groove ball bearings, stainless steel W 639-2Z

Bearing number : W 639-2Z

Size (mm) : 9x30x10

Brand : SKF

Bore Diameter (mm) : 9

Outer Diameter (mm) : 30

Width (mm) : 10

Bearing dimensions and specification in SKF catalogue:

d - 9 mm

D - 30 mm

B - 10 mm

d₂ - - 15.3 mm

D₂ - - 25.28 mm

r_1,2 - min. - 0.6 mm

d_a - min. - 13 mm

d_a - max. - 15.2 mm

D_a - max. - 26 mm

r_a - max. - 0.6 mm

Basic dynamic load rating - C - 4.9 kN

Basic static load rating - C₀ - 2.3 kN

Fatigue load limit - P_u - 0.1 kN

Reference speed - 60000 r/min

Limiting speed - 30000 r/min

Calculation factor - k_r - 0.035

Calculation factor - f₀ - 12.9

Mass bearing - 0.0335 kg

Designation

Bore Dia, mm

Outer Dia, mm: