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W 639/3-2RS1/Deep groove ball bearing/

D3DD2dd2.JPG

Product model W 639/3-2RS1
d 3 mm
D 8 mm
B 4 mm
Limiting speed 43000 r/min
d1 ≈4.35 mm
d2 ≈4.35 mm
D2 ≈7.25 mm
Chamfer size (r1,2) min.0.15 mm
da min.3.9 mm/max.4.3 mm
Da max.7.3 mm
ra max.0.15 mm
Pu 0.004 kN
Reference speed 140 000 r/min
kr 0.025
f0 6.1