Typical gearboxes commonly have two sets of gears: enter and output. the enter & the output. The input gears are set around the countershaft, generating them solitary units. It drives the individual gears on the principle shaft, which rotate freely to the bearings. Spur and helical gears are Utilized https://gearbox53185.bloguetechno.com/facts-about-gearbox-revealed-68911709