M270749/M270710 bearing
Bearing NO. :M270749/M270710
Boundary dimensions(mm)
d :447.675
D :635
T :120.65
B :120.65
C :95.25
r 1.2min :6.4
r 3.4min :6.4
Basic load ratings(kN)
Cr :1900
Cor :4350
Limiting speed(rpm)
Grease :450
Oil :600
Application point
a :114.6
Abutment and fillet dimensions(mm)
da max :502
db min :474
Da max :591
Db min :617
ra max :6.4
rb max :6.4
Value
e :0.33
Y :1.8
Y0 :0.99
Weight (kg)
Refer :117
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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