After long-term summary of the technical staff, bearing hair ring has the following 27 reasons, there may be a lot we do not come across, the future will slowly after the meeting.
    Bearing mixed with sand or carbon particles and other impurities play a role in abrasives
    Bearing mixed with water, acids, dirt or paint, play a corrosive effect;
    3 bearing clearance is too small (with inappropriately);
    4 varieties of oil or grease are not chosen;
    Insufficient lubrication (oil level is too low, oil or grease through the seal leakage);
    Bearing bore folder flat (housing bore roundness is not good or not straight bore distortion);
    7 bearing the underside of the horn uneven (resulting in deformation of the bore even bearing housing cracks);
    8 bearing hole debris (residual chips, dust particles, etc.);
    Ring eccentricity (run into adjacent parts and friction);
    Bearing subject to additional loads (axial bearings are tight limp, or a shaft has two fixed end bearings);
    11 for the elongation (the bearings are statically indeterminate axial Additional load);
    12. Bearing clearance is too small, too tight (tighten too tight sets) rotation;
    13 bearing noise (the end face of roller or ball slip cause);
    14. Too loose bearing and shaft with (shaft diameter is too small or tight sets not tighten);
    15. Shaft shoulder too large (encountered bearing the seal member and the occurrence of friction);
    Bore 16. Shoulder block is too large (the bearing seals badly distorted);
    17 labyrinth seal the gap is too small (friction) and the shaft;
    18 lock washer tooth bending, (met bearings and friction);
    19 rejection of the position of the oil ring inappropriate (touching the flange cover and friction);
    20 ball or roller indentation (installation with a hammer bearing caused);
    21 bearing noise (external local oscillator interference);
    22 bearing heat discoloration and deformation (using a heat gun to remove the bearing caused);
    23. The shaft is too thick with tight (resulting in excessive bearing temperature or noise);
    24 bearing noise (bearing micro-abrasion).
    25. Bearing hole diameter is too large, the actual mating too loose (bearing temperature is too high - the outer ring slip);
    26 bearing hole (non-ferrous metal bearing hole stretch or larger due to thermal expansion);
27. Bore diameter is too small (resulting in high bearing temperatures).
 



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