Date: 2013-08-20

Bearing determine the principles and methods of repair

determine the best time bearing repair
    Rolling into repair work to which state is better to determine the rules and characteristics of this from the bearing damage. The usage most small and medium-sized bearings damage, usually to the ferrule or rolling body fatigue and excessive wear. When the bearing rolling surface into the third stage of the wear, or has been pitting and spalling, and the bearings will quickly tends to fail, the raceway surface of the damage is very severe, the repair is very difficult, or have lost the repair value.
    But the bearing prior to the above phases, the wear is relatively minor, fatigue is also only in the rolling surface of the surface layer may occur within a few microns to tens of microns in depth, and thus in the machine bearing repair, can be obtained with a small consideration preferred Repair effect. In short, the rolling bearing repair period when the bearing has worked for a long period of time, has been fully utilized, and enters the repair before the damage appeared most appropriate.
    Bearing repair method for determining timing
    Bearing whether it should be specific judgments repair bearings have been full advantage of the imminent destruction appeared judgment as follows:
    1) bearing work status monitoring instrument
    Such as iron spectrometer or SPM or I-ID-1 type bearings status monitoring equipment to determine the working condition of the bearing and decisions bearing when should repair, which is the most convenient and reliable method.
    For example, when using the HD-1 instrument pointer by warning area close to the danger zone, improve lubrication and other measures taken pointer did not return, you can ascertain the bearing itself, can take advantage of not yet entering the danger zone when bearing repair. Exactly how far away from the danger zone to start repair by Experience adjustments.
    With this instrument, you can take full advantage of the potential for bearing work, timely repair bearing can avoid failure occurred, is safe and economical.
    2) the use of simple tools listener
    Occasion does not have the above instrument, the operator can hand-held tools such as rod or wrench are inconsistent with the machine casing parts closest to the bearing, the ears ashamed tool listens on bearings from the operating sound by tools, of course, to use the the medical stethoscope modification can also .
    Normal bearing operating sound should be uniform, smooth and not harsh sound, rather than the normal bearing operating sound with a variety of intermittent impact or harsh sounds normal bearing operation first to get used to the sound, and then will be able to grasp the judgment is not normal bearing operating sound, then through the accumulation of practical experience, and further analyze what's not normal sound corresponds to what bearing irregularities. Many bearing abnormal sound categories, it is difficult to explain in words, mainly by the accumulation of experience.

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