IKO bearing failure and the influence of the damage to the use of analytical knowledge - bearing

by:Waxing     2020-05-30
1. Metal raceway surface spalling bearing body and the inner and outer ring raceway surface under the role of the periodic pulse load, resulting in a periodic change of contact stress. When the stress cycles after reaching a certain value, on the body or the inner and outer ring raceway work produce fatigue spalling. If IKO bearing load is too big, can make this kind of fatigue. In addition, the bearing installation is not straight, shaft bending, also can produce roll flaking off. Bearing raceway fatigue spalling can reduce the running accuracy of shaft vibration and noise in the organization. 2. Bearing burn burn IKO bearing raceway, the body has the heat tint. Burns is usually the cause of insufficient lubrication, lubricating oil quality does not conform to the requirements or metamorphism, and bearing assembly too tight. 3. Plastic deformation of bearing raceway and roller contact surface appear uneven pits, bearing produce plastic deformation. The reason is bearing under static load or shock loading, local stress exceeds the yield limit of material on the surface of the work, this kind of situation usually happened in the low-speed rotation IKO bearing. 4. Bearing race crack cause crack of the bearing race may be bearing fit tight, loose foreign or bearing inner ring, bearing deformation, inclusive of installation of bearing surface processing etc. 5. Cage fracture reason is the insufficient lubrication, broken body, seat skew, etc. 6. Retainers metal adhesive on the body of the possible reason is that body was stuck in a cage or insufficient lubrication. Seven ring raceway serious wear any IKO bearing service life depends largely on the preventive maintenance and received it. This especially in industrial applications, often working conditions, heavy load, dust and pollution is a common size. First of all, reasonable structure design and equipped with advanced, just can have a long bearing life. Bearing manufacturing generally go through forging, heat treatment, cutting, grinding and assembly, and multi-channel processing operations. The rationality of the processing technology, advanced, stability will also affect the IKO bearing's life. Which affects the quality of finished products bearing heat treatment and grinding process, tend to have a more direct relationship with bearing failure. In recent years the study of metamorphic layer of bearings working surface show that the grinding process and its surface quality is close. Then, the main reason for bearing failure analysis is based on a lot of the background, analyze data and failure forms, find out the main factors of bearing failure, so that the improvement measures are put forward, extend IKO bearings, to avoid premature failure of the attack. Finally, bearing materials of metallurgical quality were the main factors influencing the premature failure of the rolling bearing. As metallurgy technology, For example, the bearing steel vacuum degassing, etc. ) Progress, raw material quality is improved. Raw material quality factor in the bearing failure analysis share has declined obviously, but it is still the major effect of the bearing failure, whether material IKO bearing failure analysis factor.
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