What is the web type gear structure?
In that case, you'll know what to look at when you look at the web type gear. The first one in the picture is solid, the two or three is the web type, and the four is the spoke type. The reason for that is to reduce the weight and save the precious metal under the condition of guaranteeing the strength.
Simply put, a lower abdominal plate, the common profile has a section called T profiles, that is, the section is T. Then sometimes the T's Cross is called the edge strip, and the vertical web is called the web. In fact, these two words are more used in aviation, and the border and web will also refer to many parts. The web, as the name suggests, is in the stomach abdominal belly, vertical board to do what, just don't let you bend down. That is to say, the web tends to support bending force in order to strengthen the material strength. Besides, the profile, if it is a font, then the board is easy to bend, into a T font, more than one web, it will not easily bend.
It should be a "spoke" type of gear structure, just like a wheel. The center of the axle and the gear are hollowed out
