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30200 Series

30228J2 bearing

  • 30200 Series
  • 30200 Series
Designation :30228J2
Principal dimensions(mm)
d1 :140
D :250
B :45,75
Basic load ratings(KN)
dyc(Cr) :418
stc(Cor) :570
Pu :58,5
Speed ratings(rpm)
Speed Ratings :1900
Limiting Speed :2600
Weight(Kg) :8,65
ISO335 
Dimensions (ABMA) :4FB
Dimensions (mm)
d :140
d1~ :186
B :42
C :36
r1,2(min) :4
r3,4(min) :3
a :47
Abutment and fillet dimensions (mm)
da(max) :164
db(min) :156
Da(min) :219
Da(max) :236
Db(min) :234
Ca(min) :7
Cb(min) :9,5
ra(max) :3
rb(max) :2,5
Value
e :0,43
Y :1,4
Yo :0,8

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.