Gears are everywhere, from seemingly simple toys to as complex things as cars. We think that it is amazing that LEGO Technic has incorporated so many gears into their sets to create functioning machines or robots to be used in FLL (FIRST LEGO League). In addition, many other LEGO themes such as City and Friends have used gears for many of their special functions. In this article, we will show you the types of gears as well as their uses.
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