Hydrostatic bearing — shallow-recess thrust pad

Dimensionless load, stiffness and load-sensitivity for a shallow-recess hydrostatic thrust pad, from the recess-area and film-thickness ratios.

✓ validated against legacyoriginal: /calculators/e13_1.htm

Hydrostatic bearing — shallow-recess thrust pad — original diagram from /calculators/e13_1.htm

Recess area ratio, B₁/B₀Film thickness ratio, h₁/h₀

Pressure ratio, β₀0.6666666666666666

Dimensionless load, F*0.7333333333333334

Dimensionless stiffness, S* (ε=0.5)0.20430107526881702

Load sensitivity, dF*13.929618768328433 %

Method & references

Shallow-recess hydrostatic thrust pad — dimensionless load/stiffness formulas.

The computation is a literal port of the original client-side JavaScript from /calculators/e13_1.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.

Hydrostatic bearing — shallow-recess thrust pad — Engineering ABC