Home>Bearing knowledge> SKF bearing application often see problems to avoid

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SKF bearing application often sees problems to avoid

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1. Selection and control of the shaft and bearing chambers. After the SKF bearing is pressed into the bearing, it should be changed to be sensitive and unobstructed. If there is significant change, it is not sensitive; then the scale of the shaft is too large; the public service should be lowered. For example, SKF After the imported bearing is pressed into the shaft, the hand is transformed with a significant “sand” feeling; it may be that the shaft is too large or the roundness of the shaft is not good. Therefore, when the shaft and the bearing chamber are controlled, the circle should be controlled. Degree; currently many domestic manufacturers only control the public service; there is no manipulation of roundness.
2, SKF bearing installation method Because SKF bearing is a high-precision product; if the installation is not easy, it is very simple to damage the SKF bearing channel; incurs SKF bearing damage. The bearing should have a special mold when installed; can not be beaten at will; When pressing the shaft, only a small circle of force is applied; when the large circle is pressed, only a large circle of force is applied. When installing, the air pressure or hydraulic pressure is required; when the press is installed, the upper and lower molds are outside the horizontal condition; if there is a skew, the bearing channel is incurred. Due to the damage of the force; the SKF bearing is caused to sound.
3. Installation of foreign objects to avoid SKF bearings are very simple to balance the iron filings that occur during dynamic balancing into the bearing; therefore, the best is to balance the load before loading the bearings. Some manufacturers are convenient for installation; Apply some oil or grease to the SKF bearing chamber for smoothing; however, it is often difficult for the operator to control the amount; if oil or grease accumulates in the bearing chamber; it is easy to enter the bearing inside the shaft when the bearing changes. The best thing about SKF bearing chamber is not to apply oil or grease; if it is not coated, it must be handled in SKF bearing room.
4, the characteristics of paint rust to avoid paint rust is more in the sealed motor; the motor sounds very good when installed; but after some time in the warehouse; the motor noise is very large; remove the SKF bearing Severe rusting appearance. Many manufacturers once thought it was a bearing problem; through our constant publicity; now the motor factory has realized that it is the primary problem of insulating varnish. The problem is mainly due to the acidic substance evaporated from the insulating varnish. Corrosive substances are formed under temperature and humidity; the SKF bearing is damaged after the channel is corroded. The problem can only be selected from good insulating paint; and it is installed after drying for a while.
The lifespan of SKF imported bearings is closely related to the production, installation and operation; it must be done at every stage; in order to make SKF bearings in the best working condition; then extend the service life of SKF bearings.

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