Standard for testing the quality of girth gears Girth gears for rotary kiln and ball mill are important transmission equipment parts in mechanical operation. This part occupy a small part of the machine, but if there is a problem or serious wear and tear on this part, it can directly affect the mechanical work flow. When we When using girth gears, the quality, hardness and wear resistance of the gears should be tested. The girth gears for rotary kiln and ball mill need to be designed according to the use of industrial mechanical parts in the design of the machining. In the production and processing, the production must be carried out according to the correct processing flow. The advanced processing technology can be selected to enhance the bearing capacity of the girth gear and its accuracy. The girth gears processed by the advanced method have high wear resistance, can withstand a relatively high impact amount to a certain extent, and can effectively reduce the degree of wear of the accessories during operation. However, the special process needs to combine some high-quality processing materials, in order to produce high-quality products with high toughness, high standard, high hardness and strong wear resistance. Hardness and wear resistance are the criteria for detecting the quality of girth gears. High-quality mechanical parts can effectively increase their service life and reduce the impact of wear on production efficiency.