Manufacture of bearings generally through forging, heat treatment, turning, grinding and assembly of multi-channel processing. The reasonableness of the processing technology, advanced, will also affect the stability of the bearing life. Which affect the quality of the finished bearing heat treatment and grinding processes, often with bearing failure have a more direct relationship. In recent years, the working surface of the bearing metamorphic layer studies show that the quality of the grinding process and is closely related to the bearing surface.
1, rust preventive paint
    Paint rust is characterized by multiple in sealed-type motor, motor in the assembly sounds good, but put in the warehouse for some time, the motor becomes very abnormal sound, remove the bearing with severe rusting. Many manufacturers will be considered a problem of tapered roller bearings, motor factory now has realized mainly insulating paint problems, the problem mainly because of insulating paint out of the volatile acid at a certain temperature, the humidity, the formation of corrosive substances , the bearing channel etched cause bearing damage. The problem can only be a good selection of insulating paint, and after a period of time after drying ventilation assembly.
     Bearing life and manufacturing, assembly, use all closely related, you must do a good job in every aspect, and only in the use of self-aligning roller bearings note these precautions in order to make the bearing in the best operating condition, thus extending bearing life.
In order to ensure that the bearing has been running in good condition, regular maintenance and repair is necessary, so as to achieve accident prevention and first place, improve production efficiency and cost savings. Here to engage the bearing professional maintenance work, the system must have a standard operating procedures, including the operation state, lubricants, periodic removal, noise, temperature, and so some of the column testing.
2, shaft and bearing tolerances choice and control
    Bearing pressed into the tapered roller bearings should be flexible rotation after no sense block. If significant rotation is not flexible, it indicates that the shaft size is too large, tolerance to downward. Such as bearings pressed into the shaft turned by hand obvious "imperfections" sense, it may be too much tolerance of the shaft or shaft roundness bad. So good control shaft and bearing tolerances have good control of roundness.
3, the assembly to prevent foreign bodies
    Bearing mounted to the rotor can easily do balancing balancing generated when the iron filings into the self-aligning roller bearings inside, so it is best to do before loading the bearing dynamic balancing. Raw material quality factors in the failure analysis of tapered roller bearings in the proportion has decreased significantly, but it is still bearing failure is one of the main factors. Appropriateness of the selection is still bearing failure analysis must be considered.


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