28880/28820 bearing
Bearing NO. :28880/28820
Boundary dimensions(mm)
d :247.65
D :304.8
T :22.225
B :22.225
C :15.875
r 1.2min :1.6
r 3.4min :1.6
Basic load ratings(kN)
Cr :155
Cor :322
Limiting speed(rpm)
Grease :800
Oil :1100
Application point
a :38.8
Abutment and fillet dimensions(mm)
da max :257
db min :262
Da max :285
Db min :289
ra max :1.6
rb max :1.6
Value
e :0.32
Y :1.85
Y0 :1.02
Weight (kg)
Refer :3.05
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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