Aerostatic slim air bearing — groove-compensated circular thrust bearing

Load capacity, stiffness, mass flow and volume flow for a circular groove-compensated aerostatic thrust bearing (modeled on the slimairbearings.eu product family).

✓ gevalideerd tegen origineelorigineel: /calculators/c12_4g.htm
Draagvermogen, F234.8 N
Belastingscoëfficiënt, F*0.61
Inherente stijfheid, S = −dF/dh20.9 1e6 N/m
Massastroom, ṁ12.572 µg/s (×1e-6 kg/s)
Volumestroom, Q0.634 l/min

The legacy page is gated by a server-side login include for the old ASP-hosted site, but solve() itself contains no client-side value-freezing lock — the formula is fully general in D0/H0/pS/pA. The diameter dropdown (10–50 mm) was a UI convenience only.

Methode & referenties

  • Circular groove-compensated aerostatic thrust bearing (slimairbearings.eu geometry: groove depth 8 µm, groove radius 0.8·R₀, central pocket radius 0.5 mm).
  • Recess pressure from the annular-groove flow-continuity equation; load from numerical integration of the radial pressure profile in the groove and outer land; stiffness by finite difference.

De berekening is een letterlijke overzetting van de originele client-side JavaScript van /calculators/c12_4g.htm. Resultaten zijn geverifieerd gelijk aan het origineel via een geautomatiseerde golden-master-test. Geen enkele formule is opnieuw afgeleid of “verbeterd”.

Aerostatic slim air bearing — groove-compensated circular thrust bearing — Engineering ABC