67989/67920 bearing
Bearing NO. :67989/67920
Boundary dimensions(mm)
d :209.55
D :282.575
T :46.038
B :46.038
C :36.512
r 1.2min :3.5
r 3.4min :3.3
Basic load ratings(kN)
Cr :365
Cor :800
Limiting speed(rpm)
Grease :900
Oil :1300
Application point
a :61.9
Abutment and fillet dimensions(mm)
da max :233
db min :218
Da max :261
Db min :276
ra max :3.5
rb max :3.3
Value
e :0.51
Y :1.2
Y0 :0.65
Weight (kg)
Refer :8.11
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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