齿轮泵的磨损部位主要有主动轴与衬套、被动齿轮中心孔与轴销、泵壳内腔与齿轮、齿轮端面与泵盖等。
Pump wear parts are mainly drive shaft and bushing, passive gear center hole and shaft pin, pump shell lumen and gear, gear face and pump cover, etc.
机筒在五轴加工中心上精密加工，内孔和销孔定位准确，精密度高。
Machine barrels are precisely processed at the Five-ax Machining Center with high accuracy and locations of inner bore and pinhole are nicety.
孔不在中心的压配合嵌套必须使用合销或扁平健固定其位置，因空间要求合销定位是首选。
Press fit buttons with other than centered round holes will use dowel locator for position or flat key. Dowel locators are preferred due to space requirements.
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