680235/680270 bearing
Bearing NO. :680235/680270
Boundary dimensions(mm)
d :596.9
D :685.8
T :31.75
B :31.75
C :25.4
r 1.2min :3.5
r 3.4min :3.3
Basic load ratings(kN)
Cr :380
Cor :995
Limiting speed(rpm)
Grease :340
Oil :450
Application point
a :124.9
Abutment and fillet dimensions(mm)
da max :621
db min :610
Da max :664
Db min :675
ra max :3.5
rb max :3.3
Value
e :0.52
Y :1.1
Y0 :0.63
Weight (kg)
Refer :17.4
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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