Hydrostatic journal bearing, multi-recess — fixed reference geometry
Reference-geometry calculator (60mm shaft diameter, L/D=1, 50 bar supply pressure — all fixed, matching the original) for an externally pressurized journal bearing with 4 or 5 pockets and a choice of capillary, orifice or fixed-flow restrictor.

The legacy "please login" demo lock froze THREE values together (shaft diameter, length ratio and supply pressure) to these exact defaults. Per docs/phase6/OWNER-DECISIONS-BACKLOG.md K4, this fixed geometry is kept exactly as in the original and only the inputs that were already free under the lock are exposed. Generalizing it is a deliberate future decision for Anton, not made here.
Methode & referenties
- Externally pressurized (hydrostatic) journal bearing with 4 or 5 pockets.
- Configuration II allows circumferential flow between pockets — slightly lower stiffness but significantly lower flow rate than configuration I.
- FIXED GEOMETRY: shaft diameter D = 60 mm, length ratio L/D = 1, supply pressure pₛ = 50 bar — the original demo lock froze these three values simultaneously.
De berekening is een letterlijke overzetting van de originele client-side JavaScript van /calculators/c11_5.htm. Resultaten zijn geverifieerd gelijk aan het origineel via een geautomatiseerde golden-master-test. Geen enkele formule is opnieuw afgeleid of “verbeterd”.