Mostly, the automatic gearbox uses a roller clutch for schedule upshifts/downshifts. It operates the same as a ratchet. It transmits the torque only in a single course by free-wheeling or overrunning in one other. The benefit of such a clutch is that it gets rid of the potential of simultaneously https://gearbox-auto10853.csublogs.com/40759911/an-unbiased-view-of-gearbox-auto