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Miniature & small ball bearings Deep groove ball bearings

R-4DD

Outline

NMB Parts No. R-4DD
Metric or Inch Inch
ISO/JIS -
Material of Rings Chromium Steel
Ring Type [Radial] Standard
Inner Diameter
(d)
[mm]
6.350
Outer Diameter
(D)
[mm]
15.875
Width
(B)
[mm]
4.978
Chamfer
(rs min)
[mm]
0.300
Reference Diameter Outer
(Lo)
[mm]
13.030
Reference Diameter Inner
(Li)
[mm]
8.200
Ball Size
(DW)
[mm]
2.3813
Ball Complement
(Z)
8
Dynamic Load Rating
(Cr)
[N]
1470
Static Load Rating
(Cor)
[N]
599
Inner Diameter
(d)
[in]
0.2500
Outer Diameter
(D)
[in]
0.6250

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