Geometrically Accurate Crossed-Axis Gearing: R-Gearing
Crossed-axis gears have a wide application in the industry. Early designs of crossed-axis gears can be found in Leonardo da Vinci’s famous book, The Madrid Codices (1974). When motion is to be transmitted between two shafts whose axes cross, some form of bevel-like gear is applied. Although gears of this kind are often made for a shaft angle of 90°, they can be produced for almost any shaft angle.