618/4
SIAIF 618/4
Type

Deep groove ball bearing

Model：618/4
Thickness(mm)：2.5
Inner diameter d：4
Outer diameter D：9
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Detailed information

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Basic size mm
  • d4
  • D9
  • B2.5
Basic load rating kN
  • DynamicsC0.54
  • Static Co0.18
RatedSpeed r/min
  • Reference speed140000
  • Limit speed85000
Model
  • Model618/4
Size mm
  • d4
  • d1 ～5.2
  • D1 ～7.5
  • D2 ～-
  • r 1,2 Minimum0.1
Shoulder and chamfer dimensions mm
  • d a Minimum4.6
  • Da Maximum8.4
  • r a Maximum0.1
Calculate coefficient
  • k r 0.015
  • fo10
Fatigue load limit Pu
  • Fatigue load limit Pu0.007
Quality kg
  • Quality kg0.0007

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