Gear Ratio Calculator
Gear ratio, kubuda speed uye torque - imwe kana compound, nendege speed.
Zvinyorwa zvinogadziridzwa paunenge uchinyora.
Nezve iyi kalkulator
A gear ratio compares the teeth on the driven (output) gear to the driving (input) gear: ratio = driven / driving. It is the fundamental trade-off of gearing — a ratio above 1 is a reduction that turns the output slower but multiplies torque, while a ratio below 1 is an overdrive that spins faster but with less torque. Concretely, output RPM = input RPM ÷ ratio and output torque = input torque × ratio, so speed and torque always move in opposite directions (ignoring friction losses), keeping the power roughly constant.
As a worked example, a 10-tooth driving gear meshing with a 35-tooth driven gear gives a ratio of 35 / 10 = 3.5:1. Feed it 1,000 rpm and 20 N·m and the output turns at 1,000 / 3.5 ≈ 286 rpm but delivers 20 × 3.5 = 70 N·m. For a compound gear train, add a second pair under advanced options and the overall ratio is the product of the two stages — a 3:1 stage feeding a 2:1 stage gives 6:1 total. Enter a tyre diameter and final drive ratio and the tool also works out road speed from the wheel rpm.
Gear ratios are how machines match a power source to a load: low gears give a car or bicycle the torque to climb and accelerate, high gears give efficient cruising, and reduction gearboxes let small fast motors drive heavy slow loads. The same principle sizes winches, conveyors, clock mechanisms and drill speeds.
Zvimwe zvinobvunzwa zvakanyanya
Sei gear ratio inofungidzirwa?
Kuparadzanisa nhamba yemiti pazvigaro akaenda nechiuru pazvigaro kutakura. A 35-miti akaenda nechigaro pazvigaro 10-miti mutungamiriri ndi 35 / 10 = 3.5:1.
Sei gear ratio inokonzera kumhanya uye torque?
A kuderedza ratio ye 3.5: 1 anoshandura kubuda 3.5 nguva zvakaoma kupfuura mudziyo asi anowedzera torque ne 3.5, kukanganwa kusvibiswa kushaya.
Chii chinonzi compound gear ratio?
Kana maviri gear maperembudzi ari mu series, zvakadzama ratio ndicho chigadzirwa chemaviri: a 3:1 stage kuchengeta a 2:1 stage anopa 6:1 kuderedza.
Chii chinonzi chiyero pakati pekuderedza uye overdrive?
A kuderedza ratio iri zhinji kupfuura 1: inoderedza kubuda uye anowedzera torque, zvakanaka kukwira uye kuvhura zviwanikwa. An overdrive iri pasi 1: inowedzera kubuda asi inoderedza torque, zvakanaka kune efficient high-speed cruising.
Gearing inogadzira simba remahara?
No. Gears trade speed for torque, not the other way around — the output power can never exceed the input, and real gears lose a few percent to friction. If torque goes up by 3.5×, speed drops by the same factor so power stays about the same.
Maitiro ekuisa calculator kuongorora kukwira kwechitima?
Kubva pa wheel rpm (input rpm ÷ total ratio ÷ final drive) uye tire circumference (π × diameter). Enter a tire diameter in inches and a final drive ratio and it returns the speed in both mph and km/h.
Ndeipi gear iri "kufambisa" gear?
The driving (kana input) gear ndicho chimwe chinobatanidza kune simba - motor kana pedal-pasi. The driven (output) gear iri pabasa-pasi. Swapping iyo ndiyo iyo inovhara ratio, kuchinja kuderera muoverdrive.
API — kushandisa iyi kalkulator kubva code
Nhare iyi calculator semahara JSON endpoint - hapana chikuru zvinodiwa. Kutumira nzvimbo mavara pasi separameter query kana JSON. Chii zvachose chaunoisa kunze chinoshandisa default iyo peji iri rakasviba nayo; parameter isiri yechokwadi inonzi 400, uye haisi zero. Tora yakazara API docs →
Endpoint
GET https://calculator.free/api/v1/gear-ratio/curl
curl "https://calculator.free/api/v1/gear-ratio/?driving=10&driven=35&rpm=1000"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/gear-ratio/?" + new URLSearchParams({
"driving": "10",
"driven": "35",
"rpm": "1000"
}));
const data = await r.json();
console.log(data.results);Zviratidzo zvemubvunzo ndezvekufungidzira kwechinangwa chekudzidzisa chete, kwete zvemari, zvehutano kana zvemari.