[ina bearings]
1, INA bearing outer ring of the demolition
Remove the interference fit of outer ring, pre-set in the case of several outer circumference of the screw extrusion screws, hand tighten the screws evenly, while demolition. These usually cover screw hole blanking plugs, tapered roller bearings, etc. separable INA [INA bearings] , set in the shell stand shoulder several incisions, the use of pads, with the press demolition, or gently tap the demolition.
2, INA Bearing INA bearing cylindrical bore in the demolition of
The demolition of the inner ring can be pulled out with the latest simple mechanical pressure. At this point, we should pay attention to the inner strength to withstand the pull. Large-scale demolition using INA bearings inner hydraulic method. By setting the axis of the hole to oil, so easy to pull. INA Bearing width is large hydraulic method and drawing fixtures and use, demolition work. NU-, NJ-type cylindrical roller bearing inner ring INA demolition can take advantage of induction heating. Local heating in a short time, so after drawing the inner expansion method.
3, INA bearings tapered bore bearing relatively small demolition demolition adapter sleeve INA bearings, fastening the support of block inner shaft, the nut back a few times, beat with a hammer using the pad removal. Large bearings, the use of hydraulic demolition easier, the hole in the cone axis in pressurized oil, to make the inner expansion, demolition of INA bearings methods. Operation, there is the possibility of INA bearings suddenly emerge, it is best to use the nut as well as a file block.
INA bearings should it be to determine the specific method of repair that has been full use of the INA bearing damage occurs near the specific judgments as follows:
1) the use of INA bearings working condition monitoring equipment, such as iron spectrometer or the use of SPM or I-ID? 1 type INA bearings working condition monitoring equipment to determine the working status of INA bearings INA ball bearings and decide when it should be to repair, this is the most convenient are more reliable method. For example, when using the HD? 1-type apparatus, when the pointer is near the danger zone by the warning area, and in taking measures to improve lubrication of the pointer does not return, they can ascertain the INA bearing itself, then you can take advantage of the risk has not yet entered area, the INA bearing repair. How far away from the danger zone started to repair, the experience can be adjusted. Use of such instruments, the work can take advantage of the potential of INA bearings, INA bearings promptly repair, and avoid failure, is a safe and economical.
2) the use of simple tools to monitor the situation does not have the equipment, the operator can be hand-held rod or wrench and other tools to contradict INA bearings closest to the machine casing parts, tools will be ashamed of listening ears tools came from the sound operation of INA Thrust Ball Bearing, of course, can also be modified using the medical stethoscope.
The normal operation of INA bearings sound should be uniform, smooth sound without harsh without the normal operation of INA bearings have a wide range of intermittent sound, impact or harsh sound. First used the normal bearing operation sound, then you can take to determine the abnormal operation of INA bearings sound, and then through the accumulated experience, to further analyze what kind of sound does not correspond to any normal kind of INA bearings are not properly the phenomenon. INA Bearing many types of abnormal sounds, difficult to explain in words, mainly by experience accumulates.
