Traditional gearboxes commonly have two sets of gears: enter and output. the enter & the output. The enter gears are mounted to the countershaft, building them single units. It drives the person gears on the main shaft, which rotate freely around the bearings. Spur and helical gears are Employed https://sergiovvtpn.mdkblog.com/39624681/the-best-side-of-gearbox