SP90
SIAIF SP90
Type

Deep groove ball bearing

Model：SP90
Thickness(mm)：20
Inner diameter d：50
Outer diameter D：90
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Detailed information

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Basic size mm
  • d40
  • D90
  • B23
Basic load rating kN
  • DynamicsC46.8
  • Static Co36
RatedSpeed r/min
  • Reference speed14000
  • Limit speed 1) 9000
Model
  • BearingOpen308NR
  • One side beltDust cover308-ZNR
  • Both side bandsDust cover308-2ZNR
  • Stop ringSP90
Size mm
  • d40
  • d1 ～50.5
  • D2 ～77.7
  • D386.79
  • D496.5
  • f2.46
  • b2.7
  • C3.28
  • r 0 Maximum0.6
  • r 1,2 Minimum1.5
Shoulder and chamfer dimensions mm
  • d a Minimum48
  • Da Maximum82
  • D b Minimum98
  • b a Minimum3
  • Ca Maximum5.74
  • r a Maximum1.5
Fatigue load limit Pu
  • Fatigue load limit Pu1.53
Quality kg
  • Quality kg0.64

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