Which pulley diameter should be entered?

Use pitch diameter for synchronous belts. For V-belts use the applicable datum/effective diameter and matching datum/effective belt length from the selected manufacturer system; do not substitute outside diameter.

What does belt-loop frequency mean?

It is the rate at which one marked point on the belt completes a full circuit, equal to pitch-line speed divided by pitch/datum belt length.

Does the calculator include slip?

No. Shaft ratio and loop frequency use ideal no-slip kinematics. A V-belt drive with slip requires measured speeds or a validated slip model.

Do 2× and 3× prove two defects or severe wear?

No. They are only mathematical harmonics of loop frequency. Diagnosis requires spectra, phase, operating condition and inspection.

Can shaft speeds define a belt-flutter frequency range?

No universal range is derived from shaft speeds alone. Span natural frequencies depend on tension, span length, mass per length and boundary conditions.

Alat Teknik Gratis

Kalkulator Frekuensi Putaran Sabuk dan Poros

Hitung frekuensi putaran sabuk ideal tanpa selip, kecepatan garis pitch, dan frekuensi poros dari dimensi pitch/datum yang saling sesuai.

Geometri Pitch/DatumKinematika Tanpa SelipReferensi, Bukan Diagnosis

Hasil Kinematika

Frekuensi putaran sabuk

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Kecepatan garis pitch

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Frekuensi poros penggerak

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Frekuensi / kecepatan poros yang digerakkan

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Rasio kecepatan n₂/n₁ = d₁/d₂

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Harmonisa matematis frekuensi putaran

Banyak	Hz	siklus/menit

Keberadaan harmonisa saja tidak mengidentifikasi cacat atau tingkat keparahan yang unik.

Kinematika ideal tanpa selip

v = π d₁ n₁ / 60,000 [m/s]

F_loop = v / (L/1000) = π d₁ n₁ / (60 L)

n₂ = n₁ d₁/d₂; f₁=n₁/60; f₂=n₂/60

Semua masukan panjang harus menjelaskan sistem pitch/datum yang sama. Gates membedakan diameter pitch dari diameter luar untuk sproket sinkron; demikian pula Optibelt membedakan diameter pitch sabuk timing serta diameter/panjang datum sabuk-V.

Sumber: Gates Light Power and Precision Manual, Manual desain sabuk timing Gates, Dan Manual sabuk-V Optibelt.

Batas diagnostik: suatu fitur sabuk yang terlokalisasi dapat berulang pada frekuensi putaran, tetapi harmonisa bukan label cacat satu-banding-satu. Frekuensi alami bentang sabuk memerlukan tegangan, bentang bebas, massa per panjang, dan kondisi batas; frekuensi ini tidak dibatasi secara universal oleh kedua frekuensi poros.