In this gear train, all the gears are mounted on their separate shafts and the gear axes remain fixed in a frame. All the paired gears are moved in opposite directions. All the gears can be in straight line or in zig-zag manner. Figure 15.24 shows the example of simple gear train.
Example 15.7: There are four gears mounted on parallel shafts. The speed of driver gear is 1,000 rpm. What is number of rotation per minute of driven gear? The numbers of teeth are 80, 60, 40, and 50 on gear 1, 2, 3, and 4, respectively.
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