Standard gearboxes typically have two sets of gears: input and output. the input & the output. The enter gears are mounted about the countershaft, producing them single units. It drives the individual gears on the principle shaft, which rotate freely about the bearings. Spur and helical gears are used https://gearbox75206.blogadvize.com/41242181/indicators-on-gearbox-you-should-know