Rolling bearings fever, severe to cause motor stall stuck; the sliding bearings fever, severe to cause alloy seizure, melted (bush-burning). Analysis: excess grease; roller inside the jacket gap oversized bearing body pitting or peeling of the inner and outer rotating cage damage. Bearing bad scraping, shaft, small contact surface in watts; gap is too small or oversized bearing and journal; off the oil or oil ring operation is not flexible, with not afford enough oil; grease grades misalignment or oil impurities destruction the formation of the film; compulsory mechanical oil may be due to the water cooler leak oil and water mix, oil physical properties destroyed. Treatment and prevention: the rolling bearings must be new clothes or cleaning oil change with gasoline or diesel to clean, to be dried before filling provisions grades of qualified grease, grease filling should not be too full, two motor filling its cavity 1/2, more than two-motor filling its cavity 1/2 to 1/3 is appropriate. Regular check of rolling bearings and found that the abnormal symptoms need to be promptly replaced at the same time to strengthen the seal in the day-to-day maintenance, regular oil changes, the bearing cap and the motor cover to be installed in place. The For the journal larger the Rolling in the installation, the oil can be used in the <110 ℃ boiled hot charging to prevent damage to the bearings and strains journal. Unexplained watts temperature rise to check the wear of the alloy watts, to ensure the smooth flow of the oil line, per square centimeter of the contact points shall not be less than six points, the journal and the bearing contact surface not less than 80%, along watts Trail around to the perpendicular of not less than 35 °. Journal and bearing with the gap: alloy watts journal ‰ wear limit of not more than 4 ‰; copper tiles journal 1.2 ‰ wear limit is not more than 5 ‰. With the gap can not be oversized or ultra-small, ultra-small to be re-scraping, oversized new tile must be replaced or re-fill hanging alloy after standard scraping. Oil ring with oil, the compulsory mechanical oil to make up, eliminate off oil occurs. Qualifying grades according to the design requirements for the use of grease, according to the provisions of the winter and summer grease replacement, do a good job sealing to prevent dirt, dust and debris mixed with lubricating oil, grease replaced reuse filtering and testing must be carried out to ensure that its physical properties to meet the standard requirements. Regularly check the water cooler, to prevent corrosion caused by leakage. For more information: company website http://www.yhzg.org http://www.mfsbw.net