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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>The reasons for the occurrence of rolling bearing problems and the detection methods The reasons for the occurrence of rolling bearing problems and the detection methods
First, the bearing's abnormal wear bearing is used for too long; beyond the service life of the bearing, it simply forms the fatigue of the raw material; plus the intense impact effect causes the raw material to be deformed; the roller and the raceway surface are peeled off and the sheet is rolled; Then the formation of smoothness and increased oscillation. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
It is very important to protect the oil supply of the locomotive bearing; in particular, the excessive oil supply to the bearing can ensure the bearing has an outstanding smoothing effect; the lack of oil and excessive oiling are also very simple to form a bearing problem; the oil is added less and the bearing is simply formed poorly. Fever; more additions are also simple to form mixing and overheating; once the oil and other impurities and water fall into the oil; it will affect the normal clearance and establish the necessary oil film.
When the bearing is used for a period of time; the inner ring of the bearing, the rolling element, the cage, the outer ring, the raceway, etc. have certain defects and scars; the smoothness of the bearing is formed; the heat of the bearing is incurred; the heat for a long time;
.1) Accelerate the fatigue of raw materials; reduce hardness.
.2) Dilution of bearing smooth oil.
Second, the impact of the device on the bearing bearing inner ring and the shaft cooperation gap interference does not match; it is also very simple to form bearing problems; large interference; very simple formation of the bearing inner ring due to excessive tensile stress and crack; interference Over. From the heart of Fiji.
When assembling the bearing, do not follow the process requirements; use the copper hammer to impact the bearing; form the deformation of the cage; the traction motor bearing inner and outer ring device is incorrect or other reasons cause the axial traverse amount to disappear; forming the bearing shaft is squeezed.
Bearing assembly cooperation gap cooperation is not appropriate; also simple to form bearing problems; small clearance is very simple to form roller and raceway conflict heat; followed by rising temperature; bearing inner ring, roll body, cage, outer ring, end cover The temperature is not the same; therefore, the amount of expansion is also slightly different; it also forms a further reduction of the cooperative gap; the heat of the bearing is added.
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The reasons for the occurrence of rolling bearing problems and the detection methods
Source: Bearing network time: 2014-03-25