M272749/M272710 bearing
Bearing NO. :M272749/M272710
Boundary dimensions(mm)
d :479.425
D :679.45
T :128.588
B :128.588
C :101.6
r 1.2min :6.4
r 3.4min :6.4
Basic load ratings(kN)
Cr :2800
Cor :6400
Limiting speed(rpm)
Grease :450
Oil :600
Application point
a :121.1
Abutment and fillet dimensions(mm)
da max :535
db min :504
Da max :635
Db min :663
ra max :6.4
rb max :6.4
Value
e :0.34
Y :1.8
Y0 :0.97
Weight (kg)
Refer :148
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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