Bearing W 637/4 XR-2Z (SKF)

Deep groove ball bearings, stainless steel W 637/4 XR-2Z

Bearing number : W 637/4 XR-2Z

Size (mm) : 4x8x3

Brand : SKF

Bore Diameter (mm) : 4

Outer Diameter (mm) : 8

Width (mm) : 3

Bearing dimensions and specification in SKF catalogue:

d - 4 mm

D - 8 mm

B - 3 mm

d₁ - - 5 mm

D₂ - - 7.4 mm

D₃ - 9.2 mm

C - 0.6 mm

r_1,2 - min. - 0.1 mm

d_a - min. - 4.8 mm

r_a - max. - 0.1 mm

Basic dynamic load rating - C - 0.225 kN

Basic static load rating - C₀ - 0.072 kN

Fatigue load limit - P_u - 0.003 kN

Reference speed - 150000 r/min

Limiting speed - 75000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 7.2

Mass bearing - 0.0006 kg

Tags : SKF , 4x8x3

Designation

Bore Dia, mm

Outer Dia, mm: