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.