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D/W R1-4/Deep groove ball bearing/

Snipaste_2022-03-24_16-07-57

Product model D/W R1-4
d 1.984 mm
D 6.35 mm
B 2.38 mm
Limiting speed 100000 r/min
d1 ≈3.92 mm
D1 ≈5.38 mm
Chamfer size (r1,2) min.0.1 mm
da min.2.8 mm
Da max.5.5 mm
ra max.0.1 mm
pu 0.001 kN
Reference speed 170 000 r/min
kr 0.025
f0 7
Radial runout National Standard
Dimensional tolerance National Standard