To counter this friction, bearings are utilized within the shafts. It lowers the friction by rolling movement, which decreases the use of Vitality. Both the counter and major shafts get the job done Using the assist from the bearing. It was to start with launched in 1939 for cars. https://gearbox59135.laowaiblog.com/32802368/how-gearbox-can-save-you-time-stress-and-money