311-2Z
SIAIF 311-2Z
Type

Deep groove ball bearing

Model：311-2Z
Thickness(mm)：29
Inner diameter d：55
Outer diameter D：120
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Detailed information

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Basic size mm
  • d55
  • D120
  • B29
Basic load rating kN
  • DynamicsC79.2
  • Static Co67
RatedSpeed r/min
  • Reference speed10000
  • Limit speed 1) 6700
Model
  • BearingOpen311
  • One side beltDust cover311-Z
  • Both side bandsDust cover311-2Z
Size mm
  • d55
  • d1 ～74
  • D2 ～104
  • r 1,2 Minimum2
Shoulder and chamfer dimensions mm
  • d a Minimum64
  • Da Maximum111
  • r a Maximum2
Fatigue load limit Pu
  • Fatigue load limit Pu2.85
Quality kg
  • Quality kg1.5

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