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从国外引进的６０Ｒ牙轮钻机采用油马达作动力装置，压力 大、转速高、功率大、结构紧凑，其制造难度大，材料要求严，工艺复杂，其主要部件定子、转子、叶片、弹簧、配油盘和轴的制造精度要求高，都需要专用设备、专用工装和测试仪器，由于这些零件都是在高边高压下工作，因此
60R roller gear imported from abroad adopts the oil motor as the power unit, which has the advantages of large pressure, high speed, high power, compact structure, high manufacturing difficulty, material requirements and complicated technology. The main components of the stator, rotor, blade, Equipped with high precision oil pan and shaft manufacturing needs special equipment, special tooling and test equipment, because these parts are working in the high-side high pressure