80780/80720 bearing
Bearing NO. :80780/80720
Boundary dimensions(mm)
d :635
D :736.6
T :57.15
B :53.975
C :41.275
r 1.2min :3.3
r 3.4min :3.3
Basic load ratings(kN)
Cr :870
Cor :2500
Limiting speed(rpm)
Grease :340
Oil :450
Application point
a :125
Abutment and fillet dimensions(mm)
da max :664
db min :648
Da max :712
Db min :726
ra max :3.3
rb max :3.3
Value
e :0.44
Y :1.4
Y0 :0.75
Weight (kg)
Refer :36.6
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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