Mechanical transmission

Typically it can be achieved by coupling with friction wheels or toothed (cog) wheels, or gears.  The above mentioned article discusses the transmission of motion by means of toothed wheels and, among other things, defines several design criteria and specific terms, including Gears, Gearing, Spacing (pitch) of a toothed wheel and Module of a toothed wheel (La trasmissione del moto mediante ruote dentate – Ed CIFI – n°2/Febbraio 2020)