The fault of bearing deep groove ball bearings, holding in death of what harm is there?

Deep groove ball bearing is most common in a bearing type, its application is very extensive, if in the process of installation of deep groove ball bearings, improper installation method, not only can reduce bearing reliability, also can cause early failure of the bearings, such as bearing lock fault, the fault will be on bearing deep groove ball bearings, holding in death of what harm? Below the bearing network ( Hereinafter referred to as:) Share lead to bearing damage after the death of bearing arms. A certain type of deep groove ball bearing in the process of use, bearing lock fault happens, cause deep groove ball bearing check failure. Look at the below bearing lock fault of bearing after all what harm is there? Hurt one, as shown in figure 1, 2, deep groove ball bearings have died, found a significant on the bearing inner and outer diameter of the rotating friction marks, bearing use, inner diameter and shaft for surplus to cooperate, outer diameter and installation shell for clearance fit, the rotating friction marks should be bearing in the process of operation, sluggish acerbity from turning to completely lock period, the bearing inside diameter and between shaft and bearing outside diameter and installation shell caused by sliding friction. Figure 1 bearing inside diameter rotating friction trace figure 2 bearing outside diameter rotating friction mark damage fracture, bearing cage, after the death of the deep groove ball bearings hold found five break not literally keep fight, one of the split in bare steel ball ( As shown in figure 3) , literally keep fight with around fracture. Under normal working state of steel ball cage rotates, the reaction between the steel ball to pocket hole is negligible, if is abnormal bearing, steel ball inside will collide with the abnormity of cage pocket hole wall, make the cage is not running smoothly, swinging and jumping. Fault bearing in the process of operation, because under high axial load, make steel ball produces abnormal collision to cage pocket hole, make the retainer side beam produces cyclical tensile force, causing fatigue crack, and then break. Figure 3 bearing not literally keep fight after three, set down the fracture damage, check the appearance quality of the surface of the deep groove ball bearing ring channel, inner ring channel bias on one side of the big end, along the circumferential direction spalling serious ( As shown in figure 4) , accounting for half of the width of the channel. Side and outer channel deflection type end, flake circumferential direction along the channel is also very serious, As shown in figure 5) And accounts for half of the channel width. Figure 4 figure 5 outer surface of inner ring channel injury of deep groove ball bearings mainly bear the channel surface injury of light and medium radial load, also can withstand the axial load, but excessive axial load will increase the load of ball and channel, resulting in bearing fault, the fault of bearing working path is not in the center of the ring channel, therefore, eventually led to the bearing inner ring channel and outer channel serious peeling phenomenon. Hurt, deep groove ball bearing a total of 14 steel ball, after the lock bearing fault, find bearing steel ball is blue, with four grain of steel ball surface has serious peeling off ( As shown in figure 6) , the rest of the steel ball surface also has different degree of damage. Figure 6 steel ball surface spalling of deep groove ball bearings at work too much to bear the additional axial load, steel ball trajectory deviating from the normal position, make steel ball contact load increases, increases the friction heat, caused by abnormal temperature rise of steel ball size swell in under the action of high temperature, decrease of clearance, the steel ball squeezing cage, keep the formation fracture cause, also cause a serious peeling phenomenon of the steel ball, eventually leading to bearing jammed.