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W 638/1.5 R-2Z/Deep groove ball bearing/

r2z1

Product model W 638/1.5 R-2Z
d 1.5 mm
D 4 mm
B 2 mm
Limiting speed 110000 r/min
d1 ≈2.15 mm
D2 ≈3.5 mm
D3 5 mm
C 0.6 mm
Chamfer size (r1,2)(r1,r2) min.0.05 mm
da1 min.1.9 mm
ra max.0.05 mm
pu 0.001 kN
Reference speed 220 000 r/min
kr 0.02
f0 6.4
Radial runout National Standard
Dimensional tolerance National Standard
da2 max.2.1 mm