5.2.14 Three-shaft gearbox with two output shafts
Manufacturers do various design tricks in order to make the gearbox as compact as possible. One of these is the use of two output shafts in the design. Both driven shafts are driven from one input shaft and further transmit the thrust through the gears to the drive gear (an example is shown in Figure 5.15). All gears are synchronized (that is, speed synchronizers are used for engaging gears). Durability and compactness are the main advantages of this gearbox layout. The thing is that the load, which in a two-shaft gearbox falls on one output shaft, in a three-shaft gearbox is distributed over two shafts.
Figure 5.15 Example of three-gear gearbox with two output shafts.
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