Most transmissions in modern-day cars use synchromesh to synchronise the speeds in the input and output shafts. Even so, previous to the fifties, most autos used non-synchronous transmissions. Spur and helical gears are used in the sliding mesh gearbox to act. Spur gear’s tooth generate a parallel connection with https://gearbox42974.blogdun.com/34446463/the-basic-principles-of-gearbox