Dust system fan bearing temperature is too high doubt is a classic question. Jintai dust removal system fan bearing selection of grease smooth, there are over-temperature from the beginning of doubt, up to about 110 ° C, the touch is hot, the first smooth with ordinary grease for oil-free special oil bushings, because the temperature After a period of time, equipment handling personnel active negotiations, confirmed by the scene, suspect oil doubt, after the selection of smooth oil on the market, the resolution selection Esso HT2 High-temperature grease, the thickener is bentonite, attributed to non-soap high-temperature grease, has excellent heat resistance, the fan bearings written in smooth, the results of the basic treatment of the bearing burnout and oil liquefaction of doubt, but the fan Bearing temperature remains high. Facts have proved that there is no thorough treatment of the existing problems. In the annual dust removal system equipment repair process, to find the true cause of the bearing abnormal fever, but also arranged for the repair staff to open the bearing inspection and found that the bearing grease filled bearing cavity, the cavity of the body fat properly plump, consider To grease almost no heat dissipation characteristics, on-site consultation doubt whether the bearing is filled with smooth grease too much, so to completely clear the bearing inner grease old self-lubricating steel sleeve, the new addition of the original two-thirds Smooth grease, leaving the fan bearing cavity must have a smooth gap. The test machine to see the bearing temperature has dropped significantly, reaching about 70 ° C. Then consult to know Esso HT2 high temperature grease suitable for high temperature applications, but not for high speed of the conflict deputy, in view of the fan load, Jintai Esso BEACON EP2 extreme pressure Lithium grease 2 replaced Esso HT2 High temperature grease, the bearing temperature is further reduced, the current dust removal system fan bearing normal operating temperature of about 50-60 ° C, the temperature has been completely dealt with the problem of over-temperature.