USEFUL CALCULATIONS FOR BEARINGS’ SELECTION
Calculation necessary for selecting the most suitable bearing for the application from the point of view of the loads applied to the same.
CHARGE APPLIED TO SINGLE BEARING
F = (Q×L)/(2×A)
Q = Load application
L = Distance between the center of gravity of the applied load and the sliding axis of the bearings
A = Distance between the center of gravity of bearings
STATIC SAFETY FACTOR
FS = C0/F
C0 = Admissible static load rating
F = Applied load to the single bearing
The static safety factor determines the degree of security that the user wants to adopt bearing against deformation of the bearing itself.
A satisfactory level of security to prevent any malfunction should be:
FS ≥ 3
Attention: In the two sections of this page, we took into account only the static load as in applications where the speed is relatively low (up to 0,5m/sec) the sizing is purely static. If the application provides higher speeds the speech should do so considering the allowable loads dynamic.