Loads

Minimum load

For additional
information
(→ Requisite minimum load)



Perform calculations

The weight of the components supported by the bearing, together with external forces, generally exceed the requisite minimum load. If this is not the case, the bearing must be subjected to an additional radial load.
Equivalent dynamic bearing load

For additional
information
(→ Equivalent dynamic bearing load)
Non-locating bearings

P = Fr


Locating bearings

Fa/Fr ≤ e → P = Fr

Fa/Fr > e → P = 0,92 Fr + Y Fa

Fa must not exceed 0,5 Fr.


Perform calculations
Equivalent static bearing load

For additional
information
(→ Equivalent static bearing load)
P0 = Fr



Symbols

dm=bearing mean diameter [mm]
= 0,5 (d + D)
e=limiting value
= 0,2 for bearings in the 10, 18, 19, 2, 3 and 4 series
= 0,3 for bearings in the 12, 22, 23, 28, 29 and 30 series
Fa=axial load [kN]
Fr=radial load [kN]
Frm=minimum radial load [kN]
kr=minimum load factor (→ product tables)
n=rotational speed [r/min]
nr
=
reference speed [r/min] (→ product tables)
P=equivalent dynamic bearing load [kN]
P0=equivalent static bearing load [kN]
Y=axial load factor
= 0,6 for bearings in the 10, 18, 19, 2, 3 and 4 series
= 0,4 for bearings in the 12, 22, 23, 28, 29 and 30 series
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