Dynamic load bearing

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DINISO281 under the standard method of dynamic load bearing calculation is based on material fatigue failure (pit), the life expectancy is calculated as:
L10 = L = (C / P) P [106 rpm]bearings high speed
L10 = L nominal rating life [106 rpm]
C rated dynamic load [KN]
P equivalent dynamic load [KN]
P life index
L10 is 1,000,000 converted to units of nominal rating life [106 rpm]
C rated dynamic load [KN]
P life index
L10 based on the nominal rating life of 1 million into units. For a large group of the same type of bearing, wherein 90% should meet or exceed this value.
Dynamic load rating C [KN] each bearing parameters table can be found under the load of the bearings can be to reach 1000000 ext rated life.

Equivalent dynamic load P [KN] is a theoretical value of the radial bearings, radial force, axial force on the thrust bearing. Its orientation, size constant. Equivalent dynamic bearing life under load and the actual load combination.

P = X * Fr + Y * Fa
: P equivalent dynamic load, Fr radial load, Fa axial load units are kN X radial coefficient, Y axial coefficient.slewing bearing manufacturers
Calculated on the basis of different types of bearings, X, Y values ​​and the equivalent dynamic load, is found in all kinds of forms bearing and foreword.
Ball bearings and roller bearing life index P different.
Pair of ball bearings, P = 3
Roller bearings, P = 10/3