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Georges HENRIOT : Arts et Métiers engineer - Former Technical General Manager of Engrenages et Réducteurs
INTRODUCTION
A gear is a device that connects two shafts, transmitting rotational motion from one of the shafts (the driving or motor shaft) to the other (the driven shaft), with a constant ratio of angular speeds.
Depending on the relative position of the two shafts to each other, we have three main gear classes:
Parallel gears: the two axes are parallel (figure 1 a).
Concurrent gearing: the two axes intersect along their extensions (figure 1 b).
Left-hand gear: the two axes occupy any relative position; they are neither parallel nor intersecting (figure 1 c).
This section on gears is made up of several articles.
The first two articles deal with parallel gears, the first being devoted to geometrical studies, the second to tooth corrections. .
In the following article, we'll be taking a closer look at left-hand and right-hand gears. and, in a fourth section, loads on gears and strength calculations. .
The final section deals with manufacturing methods and planetary gear trains. .
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Parallel gears - Geometric study
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