Principle and method of determining bearing repair service - bearing knowledge

A, determine bearing the repair work the best chance of rolling bearing to what kind of state, it is better to repair the damage from the bearing rules and characteristics. Use most of the small and medium-sized bearing damage, usually with a ring or rolling body fatigue and excessive wear. When rolling bearing surface into the third stage of wear and tear, or has appeared pitting and spalling, the bearing will be failed quickly, the destruction of the raceway surface has very serious at this time, it very difficult to repair, repair or have lost value. Before the stage, but the bearing wear relatively mild, fatigue is just under the surface layer on the surface of the rolling may occur within a few microns to the depth of the dozens of micrometers, so in this time will be bearing repair service, can use a small price to pay to obtain the better repair effects. In short, the repair period of rolling bearing to when the bearing has worked for a long time, has obtained full use of, and in the damaged prior to entering the most appropriate repair. Second, bearing the repair time of the specific way of judgment whether the method for determining the bearing should be the repair, the bearings have make full use of the near destruction of specific judgment method is as follows: 1) Using bearing working condition monitoring instrument using SPM or I - such as iron spectrometer ID— Type 1 bearing working condition monitoring instrument to determine the working state of bearing and decide when bearing should be the repair, this is the most convenient and reliable method. For example, when using the HD - Type 1 instrument, when a pointer by warning area close to the danger zone, and after the measures such as to improve the lubrication pointer has not returned, can be ascertained and the bearing itself, can take at this time has not yet come into the danger zone, the bearing repair service. Exactly how far away from the danger area began to repair, can be adjusted by the experience. Use of such instruments, can make full use of bearing working potential, and in a timely manner to the bearing repair service, and can avoid failure, is safe and economic. 2) Using simple tools to monitor in does not have the occasion of the instrument, the operator can hold or wrench tools such as conflict of round the closest bearing machine shell parts, ashamed of tools to monitor the ear tool by the sound of bearing operation, using a stethoscope modification can also, of course. The normal working of bearing should be uniform, smooth not harsh voice, not the normal working of bearing has a wide variety of intermittent, impact or harsh voice. First have to get used to the normal working of bearing ring, then can grasp the judgment is not the normal working of bearing, and then through the accumulation of practical experience, and further can analyze what kind of what kind of bearing abnormal sound corresponds to the abnormal phenomenon. Bearing abnormal sound of category a lot, it is difficult to talk, mainly by experience accumulated.