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Inch Series

M255499/M255410A bearing

  • Inch Series
  • Inch Series
Bearing NO. :M255499/M255410A
Boundary dimensions(mm)
d :288.925
D :406.4
T :77.788
B :77.788
C :60.325
r 1.2min :6.4
r 3.4min :3.3
Basic load ratings(kN)
Cr :1010
Cor :2080
Limiting speed(rpm)
Grease :850
Oil :1200
Application point
a :
Abutment and fillet dimensions(mm)
da max :316
db min :310
Da max :379
Db min :388
ra max :6.4
rb max :3.3
Value
e :0.34
Y :1.78
Y0 :0.98
Weight (kg)
Refer :29.8

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.