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W 637/4 X-2Z/Deep groove ball bearing/

D2

Product model W 637/4 X-2Z
d 4 mm
D 8 mm
B 3 mm
Limiting speed 75000 r/min
d1 ≈5 mm
D2 ≈7.4 mm
Chamfer size (r1,2) min.0.1 mm
da min.4.8 mm/max.4.9 mm
ra max.0.1 mm
Pu 0.003 kN
Reference speed 150 000 r/min
kr 0.02
f0 7.2
Da max.7.5 mm
Bearing quality 0.001 kg
Dimensional tolerance National Standard
Radial runout National Standard