双列角接触球轴承 载荷
最小载荷，等效轴承载荷
最小载荷
等效轴承动载荷
Fa/Fr ≤ e → P = Fr + Y1 Fa
Fa/Fr > e → P = X Fr + Y2 Fa
Fa/Fr > e → P = X Fr + Y2 Fa
等效静态轴承载荷
P0 = Fr + Y0 Fa
符号
| dm | 轴承平均直径 [mm] = 0,5 (d + D) |
| e | 极限值 Fa/Fr 不同计算系数的适用性（每种产品的技术规范, product table) |
| Fa | 轴向载荷 [kN] |
| Fr | 径向载荷 [kN] |
| Frm | 最小径向载荷 [kN] |
| kr | 最小径向负载系数（每种产品的技术规格书, product table) |
| n | 转速 [r/min] |
| P | 等效轴承动载荷 [kN] |
| P0 | 等效静态轴承载荷 [kN] |
| X, Y0, Y1, Y2 | 计算系数（每种产品的技术规格, product table) |
| ν | 润滑油的实际工作粘度 [mm2/s] |
