11 way bearing lubrication, inadequate lubrication bearing damage level - bearing knowledge

Has important role in the use of lubrication of bearings, in many cases the bearing damage is caused by poor lubrication, according to statistics, about 40% of the bearing damage is related to bad lubrication. Bearing in order to be able to obtain good lubrication, the bearing with case analysis, summed up the 11 kinds of bearing lubrication way. Bearing lubrication 11 kinds of ways: one, manual lubrication is the most primitive method, and in the case of insufficient bearing lubricating oil, with oil lubricator. But this method is difficult to maintain a certain oil and a greater risk for negligence forget refueling, usually only used for light load, low speed or intermittent movement of the situation, the best operation, on the oil-way set dust cover or ball valve, and filter felt, cotton, wool, etc. Second, drop point lubrication is typically used for peripheral speed is less than 4 ~ 5 m/s in the light load and load bearing, from a container via hole, needles, such as valve supply roughly quantitative lubricating oil, is the most classic drip oil cup, drops of oil varies with oil viscosity and bearing clearance and oil hole position have significant changes. Three, ring lubrication can depend on the shaft and rotating ring in the oil pool of lubricants to bearing ( Can only be used for horizontal spindle lubrication method) , suitable for medium speed and high speed bearing diameter of axle is greater than 50 mm, oil ring had better be seamless, bearing width to diameter ratio less than 2, can use only one oil ring, otherwise need two oil ring. Four, wick lubrication depends on the capillary wick and siphonage drew the lubricating oil in the oil cup to the bearing, mainly used for the peripheral speed is less than 4 ~ 5 m/s in the light load and load bearing, moreover wick in the whole process can have the effect of filtering. Five, oil lubrication with oil mat of capillary effect, the oil pool of grease to the diameter of axle surface, this method can make the friction surface often keep clean, but the dust will plug wool stoma cause insufficient oil supply. Oil pad amount of lubricating oil is only 1/20 of its oil lubrication. Six, oil bath lubrication, the lubrication method is immersed part of the bearing in lubricating oil, used in the thrust bearing of vertical shaft, and should not be used for horizontal spindle radial bearing. Splash lubrication, rely on the fuel tank in the rotating parts of panting and splash up supply of lubricating oil bearing, bearing is suitable for high speed. Eight, oil mist lubrication with dry compressed air after the sprayer and lubricating oil mixed form oil mist, spray import motor bearing, can effectively make the bearing cooling airflow and can prevent the intrusion. This method is suitable for high speed, high temperature lubrication bearing parts. Nine, pressure lubrication oil supply oil to the bearing lubrication pump pressure, will flow from the bearing lubricating oil recycling into the oil pool to use cycle, is the most stable and the oil lubrication method, suitable for high speed and heavy, important sliding bearing. Ten, circulating oil lubrication oil pump will filter the oil transfer to the bearing parts, through the bearing lubricating oil filter cooling after use. Due to the circulating oil can take a certain quantity of heat, cooling the bearing, therefore method is suitable for high speed bearing parts. Eleven, lubrication oil pump with high pressure jet to fire the oil in the high pressure of the nozzle to the bearing, the other end into the oil in the stainless steel bearings in the bearing into the oil tank. When bearing at high speed, rolling element and cage with high rotate speed makes the surrounding air, the air in general it is difficult to be sent to the bearing lubricating oil lubrication method, then must use the method of high-pressure jet spray the lubricating oil to the bearings, the position of the nozzle must be between inner ring and maintains a center. Cause poor lubrication bearing damage is also common situation, here we mainly analyse the different level about bad lubrication bearing damage, good let everyone to adopt the reasonable solution depending on the situation. Caused by inadequate lubrication bearing damage can be divided into the following four levels: level 1 damage - — Hot color changing surge working temperature cause discoloration secondary damage - — Scratch and spalling overload, low speed or sudden up the working temperature of the oil film is too thin cause micro spalling triple damage - — Overheat cause thermal damage to metal contact between the roller end of the tapered roller thermal damage level 4 damage - — The entire guarantee reasonable lubrication bearing lock? Correct lubrication, regular maintenance, and can avoid bearing damage caused by lubrication problem. Ensure reasonable lubrication should be: 1, the following equipment manufacturers set for each device using guide; 2, add grease, should be filling the bearing rolling parts and shell ( Or retainer) Between, in order to assure enough grease into, the key of raceway surface get sufficient lubrication; 3, should be paid attention to when the bearing should be fatliquoring; 4, indicating instrument of monitoring equipment, in order to detect signs of problems, such as the abnormal temperature fluctuations and/or high temperature; 5, pay attention to the equipment noise or abnormal vibration; 6, observe the lubricating oil leakage; 7, sampling of lubricating oil regularly, and see whether pollution.