SP72
SIAIF SP72
Type

Deep groove ball bearing

Model：SP72
Thickness(mm)：17
Inner diameter d：35
Outer diameter D：72
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Detailed information

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Basic size mm
  • d30
  • D72
  • B19
Basic load rating kN
  • DynamicsC29.2
  • Static Co20.8
RatedSpeed r/min
  • Reference speed18000
  • Limit speed 1) 11000
Model
  • BearingOpen306NR
  • One side beltDust cover306-ZNR
  • Both side bandsDust cover306-2ZNR
  • Stop ringSP72
Size mm
  • d30
  • d1 ～40.1
  • D2 ～61.9
  • D368.81
  • D478.6
  • f1.7
  • b1.9
  • C3.28
  • r 0 Maximum0.6
  • r 1,2 Minimum1.1
Shoulder and chamfer dimensions mm
  • d a Minimum36.5
  • Da Maximum65.5
  • D b Minimum80
  • b a Minimum2.2
  • Ca Maximum4.98
  • r a Maximum1
Fatigue load limit Pu
  • Fatigue load limit Pu0.88
Quality kg
  • Quality kg0.37

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