Common gearboxes normally have two sets of gears: enter and output. the input & the output. The input gears are fastened on the countershaft, generating them one units. It drives the individual gears on the primary shaft, which rotate freely to the bearings. A Clutch shaft does the function https://gearbox70233.full-design.com/the-smart-trick-of-gearbox-that-no-one-is-discussing-76202353