1, axle bearing outer ring removal
Demolition of the interference fit outer ring in advance on the circumference of the shell sets the extrusion screw several outer rings with screws, and equally tighten the screw, while demolition. Blind plug the screw holes on the usual cover, separable bearings of tapered roller bearing, in setting shell shoulders several incisions, using the pad, press remove, or gently beating demolition.
2, bearing in the demolition of bearings with a cylindrical bore
Demolition of inner ring, can pressure machine pull the latest simple. At this point, should pay attention to the inner ring to sustain its pullout. Large-scale demolition using hydraulic method of FAG bearings inner ring. By setting the oil hole oil pressure on the axis, so easy to draw. Width of large bearings for oil injection combined with drawing fixture, the demolition job. NU, NJ type cylindrical roller bearing inner ring removal can take advantage of induction heating method. Local heating in a short time, after the inner ring expansion method for drawing.
3, disassembly disassembly of bearings with a tapered bore of bearings with adapter sleeve bearings are relatively small, with block support for fastening on the axis of inner ring, the nut back after several times, using hammers beating demolition for pad. Large bearings, hydraulic removal easier, taper hole of pressurization oil oil hole on the axis, so that the inner ring expansion, FAG bearing removal method. In operation, the bearing prolapse may suddenly, it is best to use nuts as a block as well.
FAG bearings should be specific judgment methods of repair, that bearing has been fully utilized and the near destruction of a particular occurrence of a judge is as follows:
1) using the bearing condition monitoring apparatus using, for example, ferrograph or SPM or I-ID?1 bearing status monitoring instrument to determine the FAG bearings bearings when you should be working state and decisions to be repaired, this is the most convenient and more reliable method. For example, when you use HD?1 instrument, and when the pointer from warning area close to the danger zone, and take measures, improved lubrication pointer does not return, will be able to identify the problem with the bearing, you can take advantage of not yet when entering the danger zone, bearing repair. How far from the danger zone began to be repaired, can be adjusted by the experience. Using this instrument, can take full advantage of bearing potential, bearing to be repaired in a timely manner, and avoid failure occurs, are safe and economical.
2) using a simple tool for listening situations where, in the absence of the above-mentioned instruments, the operator can be armed with rods or tools such as wrenches machine shell parts of the subject closest to the fag bearing, ears and ashamed to tool by tool listens on from the bearing operation, using converted medical stethoscope can also, of course.
Normal bearing operation should be even, smooth and not harsh voice, FAG bearings instead of the normal operation of a wide range of intermittent, or harsh sound of impact. First to get used to normal bearing operation, then you can make the judgment does not sound normal bearing operation, and accumulate experience through practice, and further analysis of what kind of abnormal sound of bearings correspond to what is not normal. Categories of abnormal sound of FAG bearings many difficult explained, is largely dependent on experience.

 


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