The four stages of alert bearing lubrication

The four stages of alert bearing lubrication - 2020 01 - 24 bearing often harsh working environment, rising and bad working condition. Along with the original equipment manufacturers and heavy equipment operators are increasingly demanding of equipment performance and productivity, bearing need to run at higher speed and higher temperature load. Therefore, the correct lubrication bearing damage to avoid may cause downtime of important role increasingly obvious. Most of the bearing ( About 80% - 90%) Use as a lubricant grease, and most bearing damage is mainly caused by insufficient lubrication. In use process, when the grease to keep rolling element and raceway contact surfaces separated, different degrees of bearing damage occurs, thus pose threat to the production efficiency and safety. Dr Timken r&d technical experts Kuldeep Mistry with clear and understandable the four stages of summed up the bearing lubrication shortage could lead to a gradual damage, can help you in inspection and repair the bearing, it found that these warning signs and promptly, nip in the bud. First stage: color metal to metal contact can make the bearing temperature is too high, resulting in raceway and roller discoloration. In mild cases, this kind of color is due to the bearing surface lubricant pollution, and in severe cases, the metal discoloration due to high temperature. In all cases, early detection can avoid costly repairs. For lubricant pollution bearing surface discoloration in the second stage: scratches and peeling off to check whether there is cut into the bearing traces of metal or metal flake these situations require immediate attention. In high load and low speed applications or continued under the condition of high temperature prone to scratches and spalling, and thin lubricant film or insufficient will accelerate the happening of the problem. Insufficient lubrication, choose the wrong grease and/or a sudden change in the working conditions can lead to bearing material peeling off ( Left) Or bearing guard Nick ( Right) The third stage: roller overheated lubrication film rupture can lead to direct contact between parts making local scratches. In tapered roller bearing, which could show the scratches on roller large end and lead guard. Metal to metal contact of tapered roller thermal damage caused by the fourth stage: bearing completely locked extreme local fever can produce metal flow in the bearing, change the raw material and geometric structure bearing. This can lead to excessive roller tilt, cage damage and bearing lock completely. If that is the catastrophic damage, it is recommended that the consulting bearing experts to determine the root cause of the problem, because may be outside lubrication factor. A small damaged bearings can make key equipment spot inspection and regularly to the lubrication is still the best way to prevent unplanned maintenance lubrication damage on the appearance and effect the performance of the bearing have very big difference. In all cases, must be designed for bearing system correct grease quantity, type, grade, viscosity, additives and supply system. According to historical experience, load, speed, sealing system, choice of conditions of use and life expectancy of grease. If not appropriate to consider these factors, the bearing performance and application effect may be lower than expected. This is the essence of lubrication expert knowledge can play a role. Looking for a partner is proficient in material science and tribology, can analysis bearing damage and determine the best grease. Or, if you just need to help set a new lubrication principles, experienced professionals can make a plan with you and to provide in-depth training. Bearing the world is complicated, but improved bearing lubrication can help business developing more smoothly. Please taking the time to carefully check the bearing and take care all the more. If excessive friction affect your operation, please don't hesitate to contact bearings experts. （ Source: timken)