Regular overhaul time INA oilless bearing stop pay attention to matters

Late fault character of bearing to the present severe problem ( Common for bearing damage, such as holding shaft, burns, sand spallation, raceway, wear beads, etc. ) Time is not beyond a week, mostly equipment capacity is larger, the faster the speed, the shorter the distance of time. INA bearings fault diagnosis, therefore, in practice, once found late fault characteristics, should be decisive discriminant oilless bearing exist problem, arrangement of maintenance as soon as possible. Bearing manufacturing plain to through forging, hot freedom, turning processing, grinding and assembly process. The rationality of the processing technology, advanced, stability will also affect the service life of bearing. Freedom and affecting the quality of bearing grinding process, often have a more direct relationship with bearing failure. In recent years the study of INA bearings work appearance transformation layer indicate that grinding process with close ties to the bearing surface quality. Movement after a period of time, the vibration and noise to maintain a certain degree, the spectrum is a single, only one or two times the frequency. Present little more than three times the power frequency spectrum, no oil bearing condition is very stable, steady working period. After going into the use of late, bearing vibration and noise increases start, sometimes presents the different sound, but the change of vibration increase is relatively slow, at this point, suddenly beginning bearing kurtosis value reaches a certain value. We thought, this time the INA bearing is characterized by the early fault. Bearing used in analysis of life's first obligation is based on a large number of entourage of material, analyze data and failure pattern of postures, find a bearing failure of the primary elements, so that the improvement measures are put forward, delay retirement period without oil bearing, prevent the onset of INA bearings anger sudden early failure. 1, normal use after one year should be a change in 2 # spindle oil and coarse fine filter. 2, the normal use of pump station to add oil must be 3 layer filter in silk cloth. 3, the spindle pulley, wheel loading and unloading must be in pumping station to suspend the work condition. The spindle under the conditions of static pressure oil float aborted. It's not damage and static pressure bearing spindle. 4, grinding wheel and grinding head spindle observation station before work pressure static pressure can within the scope of the specification. 5, equipment downtime, must stop the grinding head motor first, after waiting for grinding wheel stop, then turn off the pump station, otherwise easy to damage the grinding head. 6, in pumping station of any parts, must first to removing the high pressure oil hose connection, after changing the parts, oil circulation 15 to myself 20 minutes ahead into the tubing can be connected to grinding head, thus ensure the into the grinding head spindle oil is super clean spindle oil after fine filtering. Doing so can extend the life of the used for static pressure spindle.