NJ252MA
SIAIF NJ252MA
Type

Cylindrical roller bearing

Model：NJ252MA
Thickness(mm)：80
Inner diameter d：260
Outer diameter D：480
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Detailed information

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Basic size mm
  • d260
  • D480
  • B80
Basic load rating kN
  • DynamicsC1170
  • Static Co1700
RatedSpeed r/min
  • Reference speed1400
  • Limit speed2000
Model
  • ModelNJ252MA
Size mm
  • d260
  • d 1 ～340
  • D1 ～397
  • F,E320
  • r 1,2 Minimum5
  • r 3,4 Minimum5
  • s 1) 3.4
Shoulder and chamfer dimensions mm
  • d a Minimum280
  • d a Maximum313
  • d b ,Da Minimum344
  • Da Maximum460
  • r a Maximum4
  • r b Maximum4
Calculate coefficient
  • kr0.15
Corner Circle
  • ModelHJ252
  • Quality6.2
  • SizeB118
  • SizeB233
Fatigue load limit Pu
  • Fatigue load limit Pu156
Quality
  • Quality70

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