In a traditional automated transmission, the gears are actually gears -- interlocking, toothed wheels that assistance transmit and modify rotary motion and torque. A mix of planetary gears generates all of the different gear ratios which the transmission can generate, typically four ahead gears and just one reverse equipment. https://gearbox-cvt32469.designertoblog.com/63689109/gearbox-cvt-fundamentals-explained