HH249749/HH249710 bearing
Bearing NO. :HH249749/HH249710
Boundary dimensions(mm)
d :254
D :358.775
T :71.438
B :71.438
C :53.975
r 1.2min :3.5
r 3.4min :3.3
Basic load ratings(kN)
Cr :760
Cor :1540
Limiting speed(rpm)
Grease :800
Oil :1100
Application point
a :64.6
Abutment and fillet dimensions(mm)
da max :284
db min :267
Da max :335
Db min :348
ra max :3.5
rb max :3.3
Value
e :0.33
Y :1.8
Y0 :0.99
Weight (kg)
Refer :21.5
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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