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We can produce following  high precison four point contact ball bearing :

QJ1000,QJ1200,QJ1900,QJ2300,QJ3000,Q2000,Q3000 series


Size: ID 30mm till OD 1600mm

Precision:P5,SP,P4,UP,P2


Four Point Contact Ball Bearings
Four Point Contact Ball Bearings
  • Four Point Contact Ball Bearings

Four Point Contact Ball Bearings

Dimension and Parameters
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Four Point Contact Ball Bearings Four Point Contact Ball Bearings
QJ308
  • Designations :
    QJ308
  • Principal dimensions(mm)
  • d :
    40
  • D :
    90
  • B :
    23
  • rmin :
    1.5
  • Basic load ratings(KN)
  • Cr :
    67
  • Cor :
    100
  • Speed ratings (rpm)
  • grease :
    6300
  • oil :
    8500
  • Load position(mm)
  • ao :
    45.5
  • Abutment and fillet dimensions(mm)
  • da min :
    49
  • Da max :
    81
  • ra max :
    1.5
  • Weight
  • (kg) :
    0.78