Gear Accuracy

Gear accuracy refers to a grade divided by the comprehensive error of gear shape, including some important parameters such as tooth shape, tooth direction, radial runout, among which tooth shape refers to the radial shape of the tooth, tooth direction refers to the longitudinal shape of the tooth, and radial runout refers to the error of the distance between two adjacent teeth. Generally, the gear used in our automobile can be processed by a hobbing machine, and can be used at grade 6~7, while some printing machines need high-speed operation and batch printing, Therefore, high-precision gears are required to reduce the errors caused by the accumulated gears and reduce the printing effect. The gear grinders produced in China can be processed to Level 4~5, the high-precision gear grinders imported from abroad can be processed to Level 3~4, and some can be processed to Level 2. The Japanese standard DIN Grade 0 is equivalent to Grade 4 judged by China, and the general error is μ M is the unit, 1 μ m=0.001mm