Alat Teknik Gratis
Kalkulator Ketegangan Sabuk
Hitung tegangan sabuk yang tepat menggunakan metode defleksi, metode frekuensi, atau pengukuran gaya langsung. Mendukung sabuk V, sabuk timing, dan sabuk datar.
Hasil
Metode Defleksi
Metode defleksi mengukur tegangan sabuk dengan menerapkan gaya tegak lurus yang diketahui pada titik tengah bentang sabuk dan mengukur defleksi yang dihasilkan.
- T — tegangan untai statis (N)
- F — gaya defleksi yang diterapkan (N)
- L — panjang bentang bebas (mm)
- D — defleksi terukur di titik tengah (mm)
Metode Frekuensi
Metode frekuensi menggunakan frekuensi getaran alami dari bentang sabuk. Metode ini lebih akurat dan dapat diulang, terutama untuk sabuk penggerak waktu (timing belt).
- T — tegangan untai (N)
- m — massa sabuk per satuan panjang (kg/m)
- L — panjang bentang bebas (m)
- F — frekuensi alami terukur (Hz)
Rentang Tegangan yang Direkomendasikan
| Jenis Sabuk | Tegangan per Sabuk (N) | Pedoman Defleksi |
|---|---|---|
| Sabuk V SPZ | 150 - 350 | 1,6 mm per rentang 100 mm |
| Sabuk V SPA | 200 - 500 | 1,6 mm per rentang 100 mm |
| Sabuk V SPB | 300 - 700 | 1,6 mm per rentang 100 mm |
| Sabuk V SPC | 500 – 1.200 | 1,6 mm per rentang 100 mm |
| Sabuk Waktu (HTD) | Sesuai spesifikasi pabrikan | Metode frekuensi lebih disukai |
| Sabuk Datar | 200 – 1.000 | Bervariasi tergantung lebarnya |
Contoh Praktis
Diberikan: Bentang L = 1500 mm, Gaya F = 20 N, Lendutan d = 5 mm
T = (20 × 1500) / (4 × 5) = 30000 / 20 = 1.500 N per untai
Diberikan: Massa m = 1,2 kg/m, Rentang L = 0,5 m, Frekuensi f = 45 Hz
T = 4 × 1,2 × 0,5² × 45² = 4 × 1,2 × 0,25 × 2025 = 2430 N
⚠️ Catatan: Sabuk baru harus dikencangkan 20–30% lebih tinggi dari nilai nominal untuk mengimbangi peregangan awal. Kencangkan kembali setelah 24–48 jam pengoperasian.
There are three main methods:
- Deflection method: Apply a known force perpendicular to the belt at the midpoint of the span. Measure the deflection. Use the formula T = (F × L) / (4 × d).
- Frequency method: Pluck the belt span and measure the vibration frequency with a sensor or app. Use T = 4 × m × L² × f².
- Direct measurement: Use a dedicated belt tension gauge (e.g., Gates Krikit, Optibelt TT) to read the tension directly.
The frequency method is generally more accurate and repeatable. It eliminates human error in force application and deflection measurement. It is especially preferred for timing belts where precise tension is critical.
The deflection method is simpler and requires only a ruler and a spring scale. It is adequate for V-belts and general industrial use.
Too loose: Belt slipping, squealing noise, heat generation, premature wear, reduced power transmission efficiency, and inconsistent speed.
Too tight: Excessive bearing loads, premature bearing failure, shaft deflection, belt fatigue and cracking, increased energy consumption.
Recommended schedule:
- After installation: Check after first 24–48 hours (initial stretch)
- Routine: Every 3–6 months during scheduled maintenance
- After events: After any drive modification, motor replacement, or unusual vibration/noise
Keep a log of tension readings to track belt condition over time.
Yes. New belts undergo significant initial stretch during the first hours of operation. Best practice:
- Tension new belts 20–30% above the nominal target value
- Run the drive for 24–48 hours
- Re-tension to the normal operating value
- Check again after one week of operation
Used belts that have already stabilized can be tensioned directly to the nominal value.
Prosedur yang dijelaskan pada halaman ini dikembangkan dan diuji langsung di lapangan oleh tim Vibromera menggunakan Balanset-1A, sebuah balancer dua saluran portabel dan penganalisis getaran untuk penyeimbangan rotor di lokasi.
Instrumen dan perangkat lunak penyeimbangan di lapangan profesional. Pemantauan getaran untuk peralatan yang digerakkan oleh sabuk. Digunakan di lebih dari 50 negara.
