Motor shaft problem and the cause of bearing burned

1. Motor axial channeling dynamic problems usually use most frequently is deep groove ball bearings and cylindrical roller bearing. And when decorate, end do axial positioning, on the other side do the axial float. Axial positioning if reliable, deep groove ball bearing axial channeling momentum should be its axial clearance, generally will not be too big, but depends on the choice of radial clearance. For cylindrical rod bearing ( N and NU series bearing) , cannot serve as locating bearing, otherwise, I'll move too much. 2. Bearing burning problem if too much positioning bearing axial load, will cause bearing burned. So, to understand when choosing location bearing axial load, whether the selected bearing bore. If it is the NJ series cylindrical rod bearing the axial load is completely by the sliding part afford, so I can't. For deep groove ball bearings, the axial capacity up to only a quarter of the radial, for different bearings are different. The motor shaft are now to HuiCuan, rely on a waveform spring washer to adjust, but still able to move. Shafting are generally required axial positioning. So you need to end as a positioning side, the other end as swimming. Waveform spring is not used to locate, is used to add axial preload. So, to cross positioning of the motor, is bound to exist waveform spring washer caused by axial channeling. To control motion, which make the traditional a positioning end, two non positioning side, then on the positioning and waveform spring washer.