Learn gear engineering
Hands-on, animated guides to how gears really work. Change the numbers, watch the gears respond — the same maths our engineers use on the shop floor.
Pick a guide
Each guide is a live playground: drag the sliders, switch the options and watch the geometry, ratios and motion update in real time.
A pair of spur gears
Design a meshing pinion and gear — module, teeth, pressure angle, helix and face width — and see pitch diameters, gear ratio and center distance respond live.
Open the guide →The planetary gearbox
Sun, planets, ring and carrier — choose which member is fixed and watch a full epicyclic stage change its ratio, speeds, torque and direction.
Open the guide →The rack and pinion
Turn rotation into travel — size a pinion, set its speed and torque, and watch a rack slide while travel per turn, linear speed and push force update live.
Open the guide →Need a gear built to spec?
From a worn sample or a full drawing — we manufacture and refurbish gears for cement, mining, sugar and steel plants across Egypt.