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我县一台小四轮拖拉机3个月内连续折断3根变速辅二轴。原因是副变速齿轮与轴承之间的挡圈磨损了5毫米。由于挡圈磨损,造成了齿轮轮齿不能正常啮合、齿轮轴
A small four-wheel tractor in our county 3 consecutive months broken off within 3 months of secondary axis. The reason is that the gear between the auxiliary gear and the bearing wear 5 mm. As the ring wear, resulting in gear teeth can not be properly engaged gear shaft