If an adequate operating life is to be achieved, a basic requirement is that the bearing contact pressure is compatible with the operating conditions. The bearing contact pressure identifies the surface pressure occurring in the bearing and is a decisive criterion for the assessment of a spherical plain bearing in each individual application.
p=Contact pressure N/m㎡
k=Contact pressure parameter N/m㎡
Cd=Dynamic load rating kN
P=Equivalent dynamic bearing load kN