74551/74850 bearing
Bearing NO. :74551/74850
Boundary dimensions(mm)
d :140
D :215.9
T :47.625
B :47.625
C :34.925
r 1.2min :3.5
r 3.4min :3.3
Basic load ratings(kN)
Cr :287
Cor :495
Limiting speed(rpm)
Grease :1600
Oil :2200
Application point
a :48.4
Abutment and fillet dimensions(mm)
da max :163
db min :150
Da max :195
Db min :209
ra max :3.5
rb max :3.3
Value
e :0.49
Y :1.2
Y0 :0.68
Weight (kg)
Refer :5.89
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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