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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Analysis of the appearance of KOYO imported bearings fatigue damage Analysis of the appearance of KOYO imported bearings fatigue damage
1), KOYO imported bearings from the beginning of the application of the first information exhausted appearance of this moment is the speed of the bearing; the load of the big. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
2), fatigue is the result of the periodic presentation of the shear stress under the load surface; after a period of time; these shear stresses cause a slender cranium; then gradually extend to the appearance; when the rolling member passes through these split skulls; The crack falls; it constitutes the so-called "peeling appearance"; then the condition of peeling continues to expand; the bearing is damaged.
3), the above is a depiction of KOYO's imported bearings; it begins to attack below the surface; although the initial stripping condition is generally very slender; but with the addition of stress and the increase of cracks; the extension of the stripping area; The situation generally lasts for a long time; its noticeable period is when noise and sensation are added.
4), the bicycle bearing in the primary period of damage; can only be difficult to feel when changing; and later found that there is a pockmark in the transformation; and a quantity of pockmark; bearing is not incapable; only in each time the beads Both the shaft bowl and the shaft file have more wear and more serious damage; because the bicycle is a low-speed high-pressure type bearing method; therefore, even if the appearance of peeling is severe, it is not overwhelming; It takes your motivation; and your feelings can only be that the car doesn’t know why it’s not good enough.
5), therefore before the KOYO imported bearings are completely damaged; it provides the discovery moment that the user satisfies; do not ignore the existence of such conflicts; it will reduce the speed of riding; let the long-distance force cost more and slower.
If the roughness of the appearance is slender; if the smooth oil film has the proper thickness; then the probability of external stress generation is suitably low; this is why it is appropriate to properly select the appropriate oil for smoothing; however; if the pressure load exceeds The pu value of the oil film (the fatigue load limit value; such as excessive speed; excessive pressure impact); then the fatigue of the data will come sooner or later.
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Analysis of the appearance of KOYO imported bearings fatigue damage
Source: China Bearing Network Time: 2018-01-25