It had been to start with launched in 1939 for vehicles. It contains the fluid coupling and 3 planetary gears. They collectively make three ahead and a single reverse velocity. There isn't any clutch for engagement and disengagement through the motor. Spur and helical gears are Employed in the https://gearbox73714.ziblogs.com/33900568/indicators-on-gearbox-you-should-know