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Bearing W638/3-2Z (SKF)
Deep groove ball bearings W638/3-2Z
Bearing number : W638/3-2Z
Size (mm) : 3x7x3
Brand : SKF
Bore Diameter (mm) : 3
Outer Diameter (mm) : 7
Width (mm) : 3
Bearing dimensions and specification in SKF catalogue:
d - 3 mm
D - 7 mm
B - 3 mm
C - 3 mm
d1 - – mm
d2 - 3,8 mm
r1 min. - 3,7 mm
r2 min. - 3,7 mm
D1 - 6,4 mm
D2 - 0,1 mm
da min. - 3,8 mm
Da max. - 6,5 mm
ra max. - 0,1 mm
Weight - 0,0005 Kg
Basic dynamic load rating (C) - 0,178 kN
Basic static load rating (C0) - 0,057 kN
Fatigue load limit (Pu) - 0,002
Reference speed - 160000 r/min
Limiting speed - 80000 r/min
Calculation factor (f0) - 7,1
Calculation factor (kr) - 0,02
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Outer Dia, mm:
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