LM742747/LM742710 bearing
Bearing NO. :LM742747/LM742710
Boundary dimensions(mm)
d :216.408
D :285.75
T :46.038
B :49.212
C :34.925
r 1.2min :3.5
r 3.4min :3.3
Basic load ratings(kN)
Cr :352
Cor :780
Limiting speed(rpm)
Grease :1000
Oil :1500
Application point
a :60
Abutment and fillet dimensions(mm)
da max :230
db min :230
Da max :271
Db min :277
ra max :3
rb max :3
Value
e :0.48
Y :1.25
Y0 :0.7
Weight (kg)
Refer :7.85
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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