The smooth big gear has 24 teeth in total, which are measured by full teeth. The changes of morphological parameters of each tooth before and after the test are analyzed in detail. Every four teeth are grouped into a group, and the tooth direction error and tooth profile error of the 1st-24th teeth are measured respectively.
(A-F) in the figure are 1-24 tooth direction error diagrams respectively, (G-L) is the tooth profile error diagram of each tooth; Similarly, the four curves on the left in each figure are the tooth direction error line and tooth profile error line on the right side of each tooth, and the four curves on the right are the tooth direction error line and tooth profile error line on the left side of each tooth; The error value of each tooth is shown in the lower part of the figure.