Loads

Needle roller / angular contact ball bearings

Needle roller bearingAngular contact ball bearing
Minimum load

For additional
information
Requisite minimum load
Frm = 0,02 C
Equivalent dynamic bearing load

For additional
information
Equivalent dynamic bearing load, P
P = FrP = Fa

Fa must not exceed 0,25 Fr.

Equivalent static bearing load

For additional
information
Equivalent static load
P0 = FrP0 = Fa

Fa must not exceed 0,25 Fr.


Symbols
Cbasic dynamic radial load rating [kN] (→ product table)
C0basic static axial load rating [kN] (→ product table)
dm
bearing mean diameter [mm]
= 0,5 (d + D)
Faaxial load [kN]
Frradial load [kN]
Fam  
minimum axial load [kN]
Frmminimum radial load [kN]
n
rotational speed [r/min]
Pequivalent dynamic bearing load [kN]
P0equivalent static bearing load [kN]
Needle roller / thrust ball bearings

Needle roller bearingThrust ball bearing
Minimum load

For additional
information
Requisite minimum load
Frm = 0,02 C
Equivalent dynamic bearing load

For additional
information
Equivalent dynamic bearing load, P
P = FrP = Fa
Equivalent static bearing load

For additional
information
Equivalent static load
P0 = Fr



P0 = Fa




Symbols
Aminimum load factor (→ product table)
Cbasic dynamic radial load rating [kN] (→ product table)
Faaxial load [kN]
Frradial load [kN]
Fam  
minimum axial load [kN]
Frmminimum radial load [kN]
n
rotational speed [r/min]
Pequivalent dynamic bearing load [kN]
P0equivalent static bearing load [kN]
Needle roller / cylindrical roller thrust bearings

Needle roller bearingCylindrical roller thrust bearing
Minimum load

For additional
information
Requisite minimum load
Frm = 0,02 CFam = 0,0005 C0 + A
Equivalent dynamic bearing load

For additional
information
Equivalent dynamic bearing load, P
P = FrP = Fa
Equivalent static bearing load

For additional
information
Equivalent static load
P0 = Fr




P0 = Fa

Symbols
Aminimum load factor (→ product table)
Cbasic dynamic radial load rating [kN] (→ product table)
C0basic dynamic axial load rating [kN] (→ product table)
Faaxial load [kN]
Frradial load [kN]
Fam  minimum axial load [kN]
Frmminimum radial load [kN]
nrotational speed [r/min]
Pequivalent dynamic bearing load [kN]
P0equivalent static bearing load [kN]
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