免費工程工具 #046
軸承當量動載荷計算器
計算當量動軸承載荷 P = X·Fr + Y·F。根據軸承類型與 F 自動選取 X、Y 係數/Fr 比值與 e 值自動選取 X、Y 係數。
結果
當量動載荷
當量動軸承載荷將徑向與軸向力合併為單一數值：
條件為：若 F/Fr ≤ e，則 P = Fr。若 F/Fr > e，則 P = X·Fr + Y·F.
依軸承類型的 X、Y 與 e 係數
| 軸承類型 | e | X (Fa/Fr ≤ e) | Y (Fa/Fr ≤ e) | X (Fa/Fr > e) | Y (Fa/Fr > e) |
|---|---|---|---|---|---|
| 深溝球軸承 (DGBB) | 0.19 | 1 | 0 | 0.56 | 2.30 |
| 角接觸球軸承 15° | 0.38 | 1 | 0 | 0.44 | 1.47 |
| 角接觸球軸承 25° | 0.68 | 1 | 0 | 0.41 | 0.87 |
| 角接觸球軸承 40° | 1.14 | 1 | 0 | 0.35 | 0.57 |
| 調心球軸承 | 0.40 | 1 | 0 | 0.65 | 1.71 |
| 圓柱滾子軸承 | — | 1 | 0 | — | — |
| 調心滾子軸承 | 0.37 | 1 | 0 | 0.40 | 1.60 |
| 球面滾子軸承 | 0.27 | 1 | 0 | 0.67 | 2.35 |
ℹ️ 注意： 上述數值為簡化的典型值。精確的 X、Y 和 e 值取決於具體的軸承型號以及 C0/F。請參閱製造商目錄以獲取精確數值。
實務範例
已知： Fr = 8 kN, F = 3 kN
F/Fr = 3/8 = 0.375 > e = 0.19 → 軸向負荷顯著
P = 0.56 × 8 + 2.30 × 3 = 4.48 + 6.90 = 11.38 kN
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.
本頁所述的操作流程由 Vibromera 團隊使用 Balanset-1A（一款用於現場轉子平衡的便攜式雙通道動平衡儀及振動分析儀）開發並經過實地測試。
專業現場動平衡儀器與振動分析儀。已應用於 50 多個國家。
