Single-pair gear ratio
API · /gearratio-api
Gear Ratio API
Gear-train ratio, speed and torque maths as an API, computed locally and deterministically. The ratio endpoint computes the gear ratio of a single pair from the driver and driven tooth counts (or pitch diameters), ratio = N_driven/N_driver, classifies it as a reduction (more torque, less speed) or an overdrive, and — given an input speed and torque — returns the output speed (input/ratio) and the output torque (input·ratio·efficiency). The train endpoint computes a compound gear train: the overall ratio is the product of the individual stage ratios, and it returns each stage ratio, the output speed and torque, noting that idler gears change only the direction of rotation, not the ratio. The solve endpoint finds the missing one of the input speed, the output speed and the ratio from the other two — for example, the ratio needed to drop a 1500 rpm motor to a 500 rpm output. Everything is computed locally and deterministically, so it is instant and private. Ideal for drivetrain, robotics and machine-design tools, gearbox and transmission selection, bicycle and vehicle gearing, and mechanical-engineering education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is gear-train ratio and torque; for spur-gear tooth geometry use a spur-gear API.
API salute
salutare- Tempo di attività
- 100.00%
- Sondaggi del server · 24 ore su 24
- Latenza media
- 75 ms
- Sondaggi del server · 24 ore su 24
- Abbonati
- 3,511
- attiva
- Chiamate totali
- 76
- ultimi 7 giorni
Prezzi
Scegli un livello: fatturazione mensile, annullamento in qualsiasi momento.
Free
Gratis
- 3,000 chiamate/mese
- 2 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 22,235 calls/mese
- 2 req/sec
- Rapporto + train + solve
- Nessuna carta di credito
Starter
€8.00 /mese
- 40,000 chiamate/mese
- 5 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 33.55k calls/month
- 8 req/sec
- Compound trains, torque & efficiency
- Email support
Pro
€22.00 /mese
- 250,000 chiamate/mese
- 20 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 369.5k calls/month
- 20 req/sec
- Drivetrain & gearbox pipelines
- Priority support
Mega
€69.00 /mese
- 1,500,000 chiamate/mese
- 60 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 1.89M calls/month
- 50 req/sec
- Platform scale
- Dedicated SLA
Costruito da
Correlato APIs
Altro APIs con tag sovrapposti.
Tire & Drivetrain API
Tyre, wheel and drivetrain maths as an API. The tire endpoint parses a metric tyre size such as 205/55R16 into all its real dimensions — section width, aspect ratio, sidewall height, rim and overall diameter in millimetres and inches, rolling circumference, and revolutions per kilometre and per mile. The compare endpoint takes an original and a replacement tyre size and works out the change in overall diameter and the resulting speedometer and odometer error — so you know how much faster you are really going than the dial shows after a tyre change. The gear endpoint computes a gear ratio from ring and pinion tooth counts, or the road speed from engine RPM, total gear ratio and tyre size. Everything is computed locally and deterministically, so it is instant and private. Ideal for automotive and motorsport apps, tyre shops and fitment tools, modding and restomod planning, and vehicle configurators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is tyre and drivetrain maths; for vehicle specifications by VIN use a vehicle-database API.
api.oanor.com/tirecalc-api
Worm Gear API
Worm-gear engineering maths as an API, computed locally and deterministically — the ratio, lead-angle and efficiency numbers a machine designer or millwright sizes a worm drive with. The ratio endpoint gives the reduction = wheel teeth ÷ worm starts, so a single-start worm on a 40-tooth wheel is a big 40:1 reduction in one compact stage — the high ratio in a small package is the whole appeal of a worm drive. The geometry endpoint gives the lead (= starts × axial pitch, with axial pitch = π × module) and the lead angle = atan(lead ÷ (π × worm pitch diameter)), and tests for self-locking: a small lead angle (roughly under 5–6° for typical steel-on-bronze) means the wheel cannot back-drive the worm — invaluable for hoists and holding loads, at the cost of efficiency. The efficiency endpoint gives the mesh efficiency when the worm drives = tan(lead angle) ÷ tan(lead angle + friction angle), which is low for the small lead angles that give big ratios — often 50–70 %, which is why worm gears run warm and need good lubrication — while high-lead multi-start worms reach 90 %+; when the lead angle drops to the friction angle the drive becomes self-locking. Everything is computed locally and deterministically, so it is instant and private. Ideal for mechanical-design and gearbox tools, machine-building and CAD utilities, and engineering calculators. Pure local computation — no key, no third-party service, instant. Confirm self-locking dynamically — vibration can unlock a marginal pair. 3 compute endpoints. For spur gears use a spur-gear API; for a general ratio a gear-ratio API.
api.oanor.com/wormgear-api
Roller Chain Drive API
Roller-chain drive maths as an API, computed locally and deterministically — the chain-length, sprocket and speed numbers a machine designer or millwright lays out a drive with. The chain-length endpoint gives the chain in pitches from the two sprocket tooth counts, the chain pitch and the centre distance: L = 2·C + (N1+N2)/2 + ((N2−N1)/2π)² ÷ C (C in pitches), rounded UP to an even number so the chain closes without an offset link — a 17- and 34-tooth pair at 15-inch centres on #40 (half-inch) chain comes to 86 pitches, 43 inches. The sprocket endpoint gives the pitch diameter, pitch ÷ sin(180°/teeth), and the outside diameter — a 17-tooth #40 sprocket has a 2.72-inch pitch circle. The speed endpoint gives the chain's linear speed, pitch × teeth × rpm ÷ 12, so a 17-tooth #40 sprocket at 100 rpm runs the chain at about 71 ft/min. Everything is computed locally and deterministically, so it is instant and private. Ideal for machine-design and drivetrain apps, conveyor and equipment-build tools, maker and CAD calculators, and engineering aids. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. For gear ratios use a gear-ratio API; for belts use a pulley API.
api.oanor.com/chaindrive-api
API de Torque de Embreagem e Freio
Torque de embreagem de fricção e freio a disco como uma API, calculado local e deterministicamente. O endpoint de embreagem calcula o torque que uma embreagem de placa (disco) pode transmitir a partir do coeficiente de atrito, da força de aperto axial e dos raios interno e externo da face de atrito, por ambas as teorias padrão — desgaste uniforme, T = n·μ·F·(Ro+Ri)/2, e pressão uniforme, T = ⅔·n·μ·F·(Ro³−Ri³)/(Ro²−Ri²) — para qualquer número de superfícies de atrito (uma embreagem multi-disco multiplica o torque), além da potência máxima em uma dada velocidade. O endpoint cônico faz o mesmo para uma embreagem cônica, T = n·μ·F·Rm/sin α, onde o ângulo de cunha amplifica a força normal por 1/sin α. O endpoint de freio fornece o torque de frenagem de um freio a disco, T = n·μ·F·R_eff, a potência dissipada em uma velocidade e — dada uma inércia rotativa e sua velocidade — a desaceleração angular, o tempo e o número de revoluções para parar, e a energia cinética convertida em calor. Tudo é calculado local e deterministicamente, portanto é instantâneo e privado. Ideal para ferramentas de trem de força, automotivas e de projeto de máquinas, engenharia de embreagens, freios e guinchos, e educação em engenharia mecânica. Cálculo puramente local — sem chave, sem serviço de terceiros, instantâneo. Ao vivo, nada armazenado. 3 endpoints. Este é o torque de embreagem e freio de fricção rotativa; para tensão de torção de eixo, use uma API de torção e para fricção de cabo/correia em tambor, use uma API de capstan.
api.oanor.com/clutch-api
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Frammenti di codice
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curl https://api.oanor.com/gearratio-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/gearratio-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/gearratio-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
"https://api.oanor.com/gearratio-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())
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