Planetary gear is one of the most unusual inventions in the engineering Department. It is also called planetary gear trains and mechanisms of change of speed, mainly used in cars as a vital part of the automatic transmission. Planetary gearboxes can deliver a lot of torque and speed reduction in a small package due to the fact that they have features beyond those of the basic axes of gears.
As mentioned earlier, the planetary gear is a strong contender when space and weight than torque and the reduction and main problems. However, to fully understand how the planetary gears work, you need details. Study of mechanics and construction reveals some of the less-obvious factors that come into play.
Any planet gear set has 4 main components: sun gear, ring gear, planet gear and planet gears of the carrier. All components can be output, input, or may be held stationary. Choosing which piece does what determines the gear ratio.
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