NU20/670ECMA
SIAIF NU20/670ECMA
Type

Cylindrical roller bearing

Model：NU20/670ECMA
Thickness(mm)：180
Inner diameter d：670
Outer diameter D：980
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Detailed information

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Basic size mm
  • d670
  • D980
  • B180
Basic load rating kN
  • DynamicsC5390
  • Static Co11000
RatedSpeed r/min
  • Reference speed500
  • Limit speed800
Model
  • ModelNU20/670ECMA
Size mm
  • d670
  • d 1 ～-
  • D1 ～890
  • F,E746
  • r 1,2 Minimum7.5
  • r 3,4 Minimum7.5
  • s 1) 7
Shoulder and chamfer dimensions mm
  • d a Minimum698
  • d a Maximum736
  • d b ,Da Minimum752
  • Da Maximum952
  • r a Maximum6
  • r b Maximum6
Calculate coefficient
  • kr0.14
Corner Circle
  • Model-
  • Quality
  • SizeB1
  • SizeB2
Fatigue load limit Pu
  • Fatigue load limit Pu750
Quality
  • Quality480

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