HM647448/HM647411 bearing
Bearing NO. :HM647448/HM647411
Boundary dimensions(mm)
d :231.775
D :377.825
T :79.375
B :80.963
C :58.738
r 1.2min :3.2
r 3.4min :3.2
Basic load ratings(kN)
Cr :958
Cor :1630
Limiting speed(rpm)
Grease :900
Oil :1300
Application point
a :77.6
Abutment and fillet dimensions(mm)
da max :244
db min :266
Da max :337
Db min :353
ra max :3.2
rb max :3.2
Value
e :0.43
Y :1.4
Y0 :0.77
Weight (kg)
Refer :32.9
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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