NU421M
SIAIF NU421M
Type

Cylindrical roller bearing

Model：NU421M
Thickness(mm)：60
Inner diameter d：105
Outer diameter D：260
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Detailed information

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Basic size mm
  • d105
  • D260
  • B60
Basic load rating kN
  • DynamicsC501
  • Static Co570
RatedSpeed r/min
  • Reference speed2800
  • Limit speed3400
Model
  • standardCageNU421M
  • otherCage1)-
Size mm
  • d105
  • d 1 ～-
  • D1 ～203
  • F,E144.5
  • r 1,2 Minimum4
  • r 3,4 Minimum4
  • s 1) 4.9
Shoulder and chamfer dimensions mm
  • d a Minimum125
  • d a Maximum140
  • d b ,Da Minimum147
  • Da Maximum240
  • r a Maximum3
  • r b Maximum3
Calculate coefficient
  • kr0.15
Corner Circle
  • Model-
  • Quality
  • SizeB1
  • SizeB2
Fatigue load limit Pu
  • Fatigue load limit Pu64
Quality standard cage
  • Quality standard cage19

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