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30300 Series

30314J2/Q bearing

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  • 30300 Series
  • 30300 Series
Designation :30314J2/Q
Principal dimensions（mm）
d1 :70
D :150
B :38
Basic load ratings（KN）
dyc(Cr) :220
stc(Cor) :260
Pu :31
Speed ratings（rpm）
Speed Ratings :3400
Limiting Speed :4500
Weight(Kg) :2,90
ISO335 
Dimensions (ABMA) :2GB
Dimensions （mm）
d :70
d1～ :105
B :35
C :30
r1,2(min) :3
r3,4(min) :2,5
a :29
Abutment and fillet dimensions （mm）
da(max) :90
db(min) :82
Da(min) :130
Da(max) :138
Db(min) :140
Ca(min) :5
Cb(min) :8
ra(max) :2,5
rb(max) :2
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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