According to international standard ISO1328.1 and national standard GB/T10095.1-2001, agricultural machinery gear precision is divided into grades 0 to 12, with higher numbers indicating lower precision. Grades 0-2 are considered developmental; very few domestic manufacturers can produce grade 2 gears. Grades 3-5 are high-precision, 6-9 are medium-precision, and 10-12 are low-precision. High-precision gears are used in measuring, instrumentation, and aerospace applications with high structural requirements; medium-precision gears are used in automobiles, machine tools, gear pumps, and agricultural machinery; and low-precision gears are used in less demanding machinery such as brick-making machines and lawnmowers.
In short, the grade should be determined by considering design requirements, manufacturing processes, and cost. Our company mainly produces agricultural machinery gears suitable for various agricultural machines, with excellent technology and craftsmanship. We look forward to your sincere cooperation!
