Bevel gears are just like spur gears, except they mesh at right angles. This causes the output axle to be perpendicular to the input axle.


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There are 2 types of Lego bevel gears. The 12 tooth gears can only mesh with themselves.
The 24 tooth gears, which are also called crown gears, can mesh with themselves as well as with other spur gears.

 

What are the gear ratios for the following pairs of bevel gears?

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See also: Spur gear, Worm gear, Lego gear combinations