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Equivalent dynamic radial load
P = X.Fr + Y.Fa





e



Single or DT bearing arrangement

DB or DF arrangement

Fa / Fr ≤ e

Fa / Fr > e   

Fa / Fr ≤ e

Fa / Fr > e   

X

Y

X

Y

X

Y

X

Y

30°

0.8

1

0

0.9

0.76

1

0.78

0.63

1.24

40°

1.14

0.35

0.57

0.55

0.57

0.93

Equivalent static radial load
Po = Xo.Fr + Yo.Fa


a


Single or DT bearing arrangement

DB or DF arrangement

X0

Y0

X0

Y0

30°

0.5

0.33


1


0.66

40°

0.26

0.52

For single or DT bearing arrangement :
If P0 <Fr,  then use P0 = Fr