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W 638/5 R-2Z/Deep groove ball bearing/

D3d2

Product model W 638/5 R-2Z
d 5 mm
D 11 mm
B 5 mm
Limiting speed 60000 r/min
d2 ≈6.2 mm
D2 ≈9.9 mm
D3 12.5 mm
C 1 mm
Chamfer size (r1,2) min.0.15 mm
da min.5.9 mm/max.6.1 mm
ra max.0.15 mm
Pu 0.006 kN
Reference speed 120 000 r/min
kr 0.02
f0 7.1
Radial runout National Standard
Dimensional tolerance National Standard