470978/470128 bearing
Bearing NO. :470978/470128
Boundary dimensions(mm)
d :177.8
D :327.025
T :90.488
B :92.075
C :63.5
r 1.2min :6.4
r 3.4min :6.4
Basic load ratings(kN)
Cr :864
Cor :1430
Limiting speed(rpm)
Grease :1000
Oil :1500
Application point
a :68.3
Abutment and fillet dimensions(mm)
da max :196
db min :224
Da max :290
Db min :305
ra max :6.4
rb max :6.4
Value
e :0.37
Y :1.63
Y0 :0.9
Weight (kg)
Refer :31.1
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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