目前,石油矿场使用的罗马尼亚MB—820柴油机的飞轮——连接器扶正轴承是采用铜套形式。在柴油机使用过程中,铜套内径严重磨损和外径松动的现象不断发生,需要经常更换铜套,而制造铜套又要求有较高的加工精度和贵重金属。为此,我们试改用滚动轴承结构代替原铜套结构,改装后经井 At present, flywheel-connector right-angle bearings of Romania MB-820 diesel engine used in oil mines are in the form of copper sleeves. In the process of using diesel engine, the inner diameter of the copper sleeve is seriously worn and the outer diameter loosens constantly. The copper sleeve needs to be replaced frequently, and the copper sleeve is also required to have higher machining precision and precious metal. To this end, we try to replace the original structure of the rolling bearing copper sleeve structure, modified after the well