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30300 Series

30317J2 bearing

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  • 30300 Series
  • 30300 Series
Designation :30317J2
Principal dimensions（mm）
d1 :85
D :180
B :44,5
Basic load ratings（KN）
dyc(Cr) :303
stc(Cor) :365
Pu :40,5
Speed ratings（rpm）
Speed Ratings :2800
Limiting Speed :4000
Weight(Kg) :4,85
ISO335 
Dimensions (ABMA) :2GB
Dimensions （mm）
d :85
d1～ :126
B :41
C :34
r1,2(min) :4
r3,4(min) :3
a :35
Abutment and fillet dimensions （mm）
da(max) :107
db(min) :99
Da(min) :156
Da(max) :166
Db(min) :167
Ca(min) :6
Cb(min) :10,5
ra(max) :3
rb(max) :2,5
Value
e :0,35
Y :1,7
Yo :0,9

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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