In a traditional automatic transmission, the gears are pretty much gears -- interlocking, toothed wheels that support transmit and modify rotary movement and torque. A combination of planetary gears produces all of different gear ratios which the transmission can create, commonly 4 forward gears and a single reverse equipment. https://emilianoyhnqu.dailyhitblog.com/37788832/the-fact-about-gearbox-cvt-that-no-one-is-suggesting