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31300 Series

31324XJ2 bearing

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  • 31300 Series
  • 31300 Series
Designation :31324XJ2
Principal dimensions（mm）
d1 :120
D :260
B :68
Basic load ratings（KN）
dyc(Cr) :539
stc(Cor) :695
Pu :73,5
Speed ratings（rpm）
Speed Ratings :1700
Limiting Speed :2400
Weight(Kg) :15,5
ISO335 
Dimensions (ABMA) :7GB
Dimensions （mm）
d :120
d1～ :190
B :62
C :42
r1,2(min) :4
r3,4(min) :3
a :78
Abutment and fillet dimensions （mm）
da(max) :145
db(min) :135
Da(min) :203
Da(max) :245
Db(min) :244
Ca(min) :9
Cb(min) :26
ra(max) :3
rb(max) :2,5
Value
e :0,83
Y :0,72
Yo :0,4

Tapered roller bearings are made of inner races called cones and outer races call cups. They are called tapered roller bearings because the cone assembly is narrower in one end and the races are built with one side narrower as well to match the rollers. This bearing construction is ideal for environments where high speed and heavy loads occur, and a low friction is needed. Tapered roller bearings are widely used in applications like automotive, rail, gearboxes, agriculture, machine tools, construction and more.


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