我们就热磨机的使用情况进行了全国性的调查,用户普遍反映QM6热磨机主轴传动结构中的7526轴承寿命太短,更换频繁,影响生产(该轴承实际使用寿命短的为二十几天,长的为半年左右)。针对这一实际问题,我们首先进行了理论分 We conducted a national investigation of the use of hot mill, the user generally reflects the QM6 hot mill spindle drive structure 7526 bearing life is too short, frequent replacement, affecting production (bearing the actual service life of a few short Day, long for six months or so). In response to this practical problem, we first conducted a theoretical score