Reducers and gear motors for mechanical speed can be counted among the most ancient inventions of mankind, and even in these times of the 21st century are still in use on virtually every machine that we have in sight, from the smallest reducer or gear motor able to change and combine the speeds of rotation in a watch bracelet, change speeds in a car, to massive geared motors capable of giving traction in cargo ships, cement mills, large machines for tunnels or mills, cane for the manufacture of sugar, mainly thanks to a gearbox that performs really well and fast.

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