محاسبه‌گر بار دینامیکی معادل یاتاقان

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·F_r + Y·F_a.

X is the radial load factor and Y is the axial load factor. When F_a/F_r ≤ e, the axial load has negligible effect (X=1, Y=0). When F_a/F_r > 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 (F_a = 0), the equivalent load simplifies to P = F_r. No axial factor applies since F_a/F_r = 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.