Conventional gearboxes usually have two sets of gears: input and output. the input & the output. The input gears are fixed over the countershaft, building them single units. It drives the person gears on the principle shaft, which rotate freely to the bearings. A gearbox in a car is https://gearbox75297.blogsvila.com/33938963/5-tips-about-gearbox-you-can-use-today