免费工程工具 #046
轴承等效动载荷计算器
计算等效动态轴承载荷 P = X·Fr + Y·Fa. 根据轴承类型和F值自动选择X、Y因子a/Fr 比率与e值。
成果
等效动载荷
等效动态轴承载荷将径向力和轴向力合并为一个单一值：
条件是：如果 Fa/Fr ≤ e，则 P = Fr. 如果 Fa/Fr > e，则 P = X·Fr + Y·Fa.
按轴承类型划分的 X、Y 和 e 因子
| 轴承类型 | e | X (Fa/Fr ≤ e) | Y (Fa/Fr ≤ e) | X (Fa/Fr > e) | Y（Fa/Fr > e） |
|---|---|---|---|---|---|
| 深沟球（DGBB） | 0.19 | 1 | 0 | 0.56 | 2.30 |
| 角接触 15° | 0.38 | 1 | 0 | 0.44 | 1.47 |
| 角接触 25° | 0.68 | 1 | 0 | 0.41 | 0.87 |
| 角接触 40° | 1.14 | 1 | 0 | 0.35 | 0.57 |
| 自对准球 | 0.40 | 1 | 0 | 0.65 | 1.71 |
| 圆柱滚子 | — | 1 | 0 | — | — |
| 锥形滚子 | 0.37 | 1 | 0 | 0.40 | 1.60 |
| 球面滚子 | 0.27 | 1 | 0 | 0.67 | 2.35 |
ℹ️ 注意： 以上数值为简化的典型值。X、Y 和 e 的具体数值取决于具体的轴承系列和 C 比。0/Fa。请查阅制造商产品目录以获取准确数值。
实例
已知： Fr = 8 kN，Fa = 3 千牛
Fa/Fr = 3/8 = 0.375 > e = 0.19 → 轴向载荷显著
P = 0.56 × 8 + 2.30 × 3 = 4.48 + 6.90 = 11.38千牛
The equivalent dynamic load P is a hypothetical constant radial load that would give the same bearing life as the actual combined radial and axial loads. It is calculated as P = X·Fr + Y·Fa.
X is the radial load factor and Y is the axial load factor. When Fa/Fr ≤ e, the axial load has negligible effect (X=1, Y=0). When Fa/Fr > e, both X and Y apply to account for the combined loading.
The e-value is a threshold ratio specific to each bearing type. It determines whether the axial load significantly affects bearing life. Different bearing types have different e-values based on their internal geometry and contact angle.
For pure radial load (Fa = 0), the equivalent load simplifies to P = Fr. No axial factor applies since Fa/Fr = 0, which is always ≤ e.
This calculator computes the dynamic equivalent load P for L10 life calculations. For the static equivalent load P0, the formula is similar but uses different X0 and Y0 factors. Use the Bearing Static Safety Factor calculator for P0 assessment.
本页所述的操作流程由 Vibromera 团队使用 Balanset-1A（一款用于现场转子平衡的便携式双通道动平衡仪及振动分析仪）开发并经过实地测试。
专业现场动平衡仪器和振动分析仪。产品已在全球50多个国家使用。
