However, with the development and application of plastic gear growing, there is no plastic gear standard in China, especially the lack of the most basic precision standard of plastic gear, which seriously restricts the development of plastic gear industry in China.
At present, there is still a certain gap between the manufacturing level of plastic gears and that of developed countries, resulting in the passive situation that China still needs to import a large number of high-grade plastic gears from abroad.
In order to break through this dilemma, it is necessary to study gear product design, plastic material research and development, injection mold design and manufacturing, new injection molding equipment and new injection molding technology research, gear detection and experiment, and the solution of these problems is inseparable from the establishment of standardization system.
However, due to the great difference between plastic gear and metal gear in design requirements, manufacturing methods and application sites, the formulation of precision standards for plastic gears is quite complicated, which has become an urgent problem for China's gear industry.