Impact IKO needle roller bearing life of common damage reason

1, reasonable and accurate installation, ensure the normal working of bearing to the installation of the needle roller bearing is correct, affects the precision, life and performance. Therefore, design and installation of assembly department for IKO bearing to fully research. Hope to work in accordance with the standards for installation. Operation standard project usually is as follows: ( 1) Cleaning bearings and bearing components (associated 2) Check the size of the interrelated parts and finishing ( 3) Installation ( 4) After installed bearing inspection ( 5) Supply lubricant after 2, install and use, to the bearing tracking monitoring during the period of using, often should basic external conditions of needle bearing operation monitoring, such as temperature, vibration and noise measurement, etc. These regular check will help identify potential problems and to prevent unexpected machine to suspend the phenomenon, make the production plan, improve plant productivity and efficiency. 3, correct reasonably complete lubrication again in the process of operation, IKO bearing requires correct lubrication again, perfect its performance. The method of bearing lubrication, divided into grease lubrication and oil lubrication. In order to make the bearing function well, choose suitable for conditions of use, using the correct lubrication method. If only consider the lubrication, oil lubrication and dominant grease lubrication but have can simplify the structure of bearing around specialty, therefore, when the choice should be based on the actual use environmental requirements. 4, bearing uninstall caution when needle bearing will reach its final use period, should be replaced. Although needle bearing can no longer be used, but properly unloaded the original bearing, replace new bearing in time, to extend the service life of new bearing can play a good role in promoting. ( 1) The use of appropriate tools unloaded method will help prevent damage for other machine components, ( 2) Incorrect unload technology may cause harm to the operator. Needle roller bearing with good lubrication, and cut off the right moisture and debris, said oil seal should not wear. However, best when open the bearing box, check the bearing and periodically check the oil seal. Check of the condition of the near the IKO bearing oil seal, in order to make sure they are enough to prevent hot corrosion along the axis of the liquid or gas into liquid or bearing, oil seal if already wear should be replaced as soon as possible. High temperature often said bearing is in abnormal situation. High temperature also harmful to within the bearing lubricant. Sometimes bearing overheating can be attributed to bearing lubricant. If the bearing in more than 125 degrees Celsius temperature operation for a long time, will reduce the bearing life. The causes of high temperature bearing include: insufficient lubrication or excessive lubrication, lubricants containing magazine, heavy load, bearing damage, clearance, and the oil seal of high temperature and friction and so on. Bearings IKO body and both inner and outer ring raceway surface under the role of the periodic pulse load, resulting in a periodic change of the contact stress. When stress cycles after reaching a certain value, the IKO body or inner and outer ring raceway on the working plane will produce fatigue spalling. If the bearing load is too big, can make the 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. Burn the bearing raceway, IKO have heat tint on the body. Burns is usually the cause of insufficient lubrication, lubricating oil quality does not conform to the requirements or metamorphism, and bearing assembly too tight. Bearing raceway and roller contact surface appear uneven pits, needle roller bearing produce plastic deformation. The reason is IKO 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 of the bearing.