Minimum oil-film thickness in a journal bearing - Sommerfeld-based approximation for safe operation.
Formula
$$ h_{min} = c (1 - \varepsilon) $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $c$ | Radial clearance | mm | maker data |
| $ε$ | Eccentricity ratio | - | bearing operating |
Sources
- Hamrock - Fundamentals of Fluid Film Lubrication.