东方红—54/75拖拉机的主轴烧瓦(第三道主轴颈座孔严重),轻者是轴瓦偏析、堵住油道;重者是瓦片在轴上抱住和座孔稍有转动;最严重者,把座孔磨损严重,划痕拉沟,深达0.3—0.5毫米,而形成动配合,造成机体不能继续使用而报废。我厂前些年对烧瓦磨损的机体,采用下套的方法修理。把主轴孔搪到105+0.021,然后做一个低碳钢的套,外径尺 Dongfanghong -54 / 75 tractor spindle burning tile (third main journal seat hole serious), the light is the bearing segregation, blocking the oilway; heavy tile is the axis of the hug and the seat hole slightly rotated; The most serious, the seat hole wear serious scratches ditches, deep 0.3-0.5 mm, and the formation of dynamic mix, resulting in the body can not continue to use and scrapped. I plant a few years ago to burn the body of the tile, the method used to repair the next set. Boring the spindle hole to 105 + 0.021, then make a low carbon steel sleeve, outer diameter