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628/4-2Z/Deep groove ball bearing/

DD2dd1.JPG

Product model 628/4-2Z
d 4 mm
D 9 mm
B 3.5 mm
Limiting speed 70000 r/min
d2 ≈5.2 mm
D2 ≈8.1 mm
Chamfer size (r1,2) min.0.1 mm
da min.4.6 mm/max.5.1 mm
Da max.8.4 mm
ra max.0.1 mm
Pu 0.005 kN
Reference speed 140 000 r/min
kr 0.015
f0 6.5