What is a Helical Gear?
A helical gear is a gear with teeth which are set at an angle. The angled teeth teeth engage slowly and smoothly, making a helical gear quieter and smoother in operation than many other kinds of gears. Cars are often equipped with helical gears for this reason, and this design may be used in many other applications, as well. These gears come in a range of sizes for a variety of tasks. Gears are designed to transfer force, either to other gears or to other objects. They have a distinct mechanical advantage, in that a small gear can be used to turn a larger gear, multiplying the force. Cyclists are well aware of this mechanical advantage, as changing the gear ratio on a bicycle will force a cyclist to do more work, or make a cyclist’s job easier. Lower gear ratios, in which the gears are close to the same size, require less energy, but they also generate less rotational motion, while high gear rations force the cyclist to work harder, but create far more rotational force. When people thi
