In summary, there are three reasons why deep groove ball bearings are burned: poor lubrication of the bearings; Excessive load on imported bearings; The poor accuracy of the shaft and bearing box are the reasons for bearing burns. Below is a detailed introduction to the reasons for bearing burns.
One of the reasons for bearing burns is due to poor lubrication of IKO bearings, which may have used non-standard lubricants or excessive or insufficient lubricants, both of which are incorrect.
The second reason for bearing burns is the excessive load on the bearing; The rotational speed of the bearing is too high; The clearance of the bearing is too small; There is water or other foreign objects invading.
The three reasons for bearing burns are poor accuracy of the bearing housing, and large deflection of the shaft.
The three main causes of bearing burns can lead to the burning state of the bearings. The raceway wheels, rolling elements, and retainers of imported bearings will rapidly heat up during rotation until discoloration, softening, deposition, and damage occur.
It is recommended to pay attention to the installation, lubrication, clearance, and other aspects as accurately and accurately as possible when using bearings, in order to reduce bearing burns and extend the service life of bearings.
The reasons for bearing noise are quite complex, one of which is the wear of the mating surfaces of the inner and outer rings of the bearing. Due to this wear, the fit between the bearings and the housing, as well as between the rolling bearings and the shaft, is disrupted, resulting in the axis deviating from its correct position and producing abnormal noises during high-speed movement of the shaft. When the bearing is fatigued, the surface metal peeling off can also increase the radial clearance of the bearing and produce abnormal noise. In addition, insufficient lubrication of bearings, dry friction, and bearing breakage can all produce abnormal noises. After IKO bearings are worn and loose, the cage becomes loose and damaged, which can also produce abnormal noises.
(1) The bearing has been damaged and should be replaced immediately.
(2) Insufficient or excessive lubricating grease for bearings, or impurities such as iron filings. The capacity of the bearing grease should not exceed 70% of the total volume, and any impurities should be replaced.
(3) The fit between the shaft and the deep groove ball bearing is too tight or too loose. When it is too tight, it should be re ground, and when it is too loose, the shaft should be fitted with a sleeve.
(4) The fit between the bearing and the end cover is too tight or too loose. When it is too tight, machine the bearing chamber, and when it is too loose, insert a steel sleeve into the end cover.
(5) Poor assembly of motor end covers or bearing covers. Insert and level the end cap or bearing cap stopper, and tighten the screws.
(6) The belt is too tight or the coupling is poorly assembled. Adjust the belt tension and correct the coupling.
(7) Insufficient lubricating oil, impurities, or oil ring jamming in IKO bearings. Should include adding oil, changing oil, repairing or replacing oil rings.