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Gear Train Torque & Speed Simulator

Interactive 2D gear-train simulator: drive a train of meshed gears, tune tooth counts and input speed, and watch how the gear ratio trades rotational speed for torque in real time.

Engineering & Materials2DEasy60 FPS📱 Mobile-adapted⇄ 3D version

Mechanical engineers size gear trains every day to turn a motor's native speed and torque into whatever a machine actually needs at its output shaft. This 2D simulator drives a three-gear train — driver, idler, driven — and animates real meshing rotation while tracking the exact speed and torque ratios that the tooth counts impose. Change the input speed, the driver and driven tooth counts, or the resisting load torque, and watch the output RPM and output torque respond instantly according to ω₂/ω₁ = N₁/N₂ and T₂/T₁ = N₂/N₁.

⚙ Under the hood

Explore how gear ratios affect speed and torque in a 2D diagram. Adjust driver, idler, and driven gears to see changes in their rotational speeds.

mechanical engineeringgearstorquespeed

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install