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        Home > Bearing Basic Knowledge > Equivalent dynamic load > Equivalent Dynamic Load-Angular Contact Ball Bearings

        Equivalent Dynamic Load-Angular Contact Ball Bearings

        Depending on different structures and contact angels, the equivalent dynamic loads of angular contact ball bearings can be obtained from Table 2.:

        Table 2 

        Contact Angles

        or Structures

        Arrangement Mode

        Equivalent Dynamic Load

        15°

        single bearings

        arranged in tandem

        Fa/Fr≤e P=Fr

        Fa/Fr>e P = 0.44Fr + YFa

        back-to-back arrangement

        face-to-face arrangement

        Fa/Fr≤e P=Fr + Y1Fa

        Fa/Fr>e P = 0.72Fr +Y2Fa

        25°

        single bearings

        arranged in tandem

        Fa/Fr≤0.68 P=Fr

        Fa/Fr>0.68 P=0.41Fr + 0.87Fa 

        back-to-back arrangement

        face-to-face arrangement

        Fa/Fr≤0.68 P=Fr+0.92Fa

        Fa/Fr>0.68  P=0.67Fr+1.41Fa

        40°

        single bearings

        arranged in tandem

        Fa/Fr≤1.14 P=Fr

        Fa/Fr>1.14 P=0.35Fr+0.57Fa  

        back-to-back arrangement

        face-to-face arrangement

        Fa/Fr≤1.14 P=Fr+0.55Fa

        Fa/Fr>1.14  P=0.57Fr+0.93Fa 

        Four-Point Contact

        Ball Bearing

         

        Fa/Fr≤0.95 P=Fr+0.66Fa

        Fa/Fr>0.95 P=0.6Fr+1.07Fa 

        Double-Row Angular

        Contact Ball Bearing

         

        Fa/Fr≤0.8 P=Fr+0.78Fa

        Fa/Fr>0.8 P=0.63Fr+1.24Fa 

        Values of e,Y, Y1, Y2 in the above table should be chosen from Table 3.

        Table 3 

        Fa/C0

        e

        Y

        Y1

        Y2

        0.015

        0.38

        1.47

        1.65

        2.39

        0.029

        0.4

        1.4

        1.57

        2.28

        0.058

        0.43

        1.3

        1.46

        2.11

        0.087

        0.46

        1.23

        1.38

        2

        0.12

        0.47

        1.19

        1.34

        1.93

        0.17

        0.5

        1.12

        1.26

        1.82

        0.29

        0.55

        1.02

        1.14

        1.66

        0.44

        0.56

        1

        1.12

        1.63

        0.58

        0.56

        1

        1.12

        1.63

        Note: C0 is the basic static load rating for a single bearing.

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