Full explanation of the cause of heat generation in vacuum pump bearings

As the vacuum pump in high-speed work situation will be formed, the rotor speed will be formed to support the rotor bearing fever. Asia Fluid Network Xiaobian prompt, usually the formation of bearing overheating for the following reasons. Vacuum pump bearing heat all the reasons Interpretation of the vacuum pump bearing heat full explanation 1, the valve cracking When a valve cracking, the pressure on both sides of the impeller will be unbalanced, rotor axial force will occur, the bearing load aggravated, long-term operation will make the bearing temperature rise. In this case should promptly replace the valve. 2, the shaft seal failure When the shaft seal packing failure or seal the water hole is blocked, the air will form from these damaged gap was sucked into the pump body, will form the pump suction and exhaust performance. As long as one side of the seal failure, the formation of pressure on both sides of the impeller imbalance, the rotor axial force, the bearing load increased, so that the bearing temperature increases. 3, bearing preload is too large This situation will promote the reduction of bearing clearance or no play, the formation of bearing temperature. 4, sensational impact When the pump or bearing a big sensation will occur when the bearing temperature is too high, see the pump body to find the cause of the stir, the elimination of sensation, the bearing temperature recovery 5, the smooth appearance of smooth grease increase too large too small, Or non-smooth grease type, the use of time is too long may be smooth grease will form bearing fever. At the moment, you should check the type of grease, ask the appropriate amount of manufacturers, adjust the smooth grease can recover bearing temperature. 6, bearings damaged bearing rolling body and bearing cage damage will be accompanied by the appearance of bearing overheating. Bearing damage is timely replacement of new bearings. (Editor: Li Juan QQ:) Recommended reading: Acting purchasing the top ten brands of vacuum pumps Xiamen 2016 CIFIT

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