Engineering tool · equivalent load
P / P0Bearing Load Calculator
Combine radial and axial loads with catalogue factors to estimate equivalent dynamic and static bearing loads.
Load combination
Calculate P and P0
Use X, Y, X0 and Y0 from the catalogue for the exact bearing type and load ratio. Enter all forces in the same unit.
RESULT / 03
Equivalent loads
Use these values with the matching rating calculation
Equivalent dynamic load P—including application factor
Equivalent static load P0—including application factor
Axial / radial ratio—Fa / Fr
Raw dynamic combination—XFr + YFa
Application factor—fs
P = fs (XFr + YFa)
Calculation method
Catalogue factors control the answer
The general equations are simple, but the correct factors depend on bearing construction, contact angle and the relationship between axial and radial load.
01 / DYNAMICP = XFr + YFa
Equivalent dynamic load is used with the basic dynamic load rating C.
02 / STATICP0 = X0Fr + Y0Fa
For many radial bearings, compare this result with Fr and use the larger value.
03 / VERIFYDo not guess X and Y
Use the limiting e value and factors published for the exact bearing and load direction.