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Axial Thrust (Duty Point)

Impeller axial thrust at the duty point — the load your thrust bearing actually has to carry.

No sign-upRuns offline in your browserFormula shown
m³/h
m
m
Head at zero flow, from the curve.
rpm
m

Result

Fill in the fields — the result appears as you type.

Method & assumptions
Ns = N·√Qgpm ÷ Hft0.75 · Fa = 0.15 · (0.052 · Ns · Hshut,ft · D2²) · 9.81 ÷ 2.2

Empirical shop correlation: flow converted to imperial gpm and split across suction entries, head to ft, diameter as entered in metres. Result is a first-pass magnitude for bearing selection — not a substitute for the manufacturer's thrust data.

Engineering aid only — verify results against the applicable code edition and the equipment datasheet before committing to a design.

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