Primarily, the automatic gearbox employs a roller clutch for plan upshifts/downshifts. It operates the same as a ratchet. It transmits the torque only in a single way by free-wheeling or overrunning in the other. The advantage of this type of clutch is the fact that it gets rid of the https://gearbox-auto78011.blog-mall.com/34393066/gearbox-auto-options