Note how much fat quantity back to what is the effect of the use of bearing

Note how much fat quantity back to what is the effect of the use of bearing for the sealed bearing, it has been filling in the production of the appropriate grease. Also set in the host to open bearings used in the sealing device, to prevent the leakage of grease. Too little fat injection rate, easy to cause lack of grease or dry friction, impact longevity. Too much fat injection rate will cause temperature rise high. Grease leak of a large number of both environmental pollution and wasteful. Thus, to the amount of injecting grease in the bearing is on the premise of guarantee sufficient lubrication of bearings, the less the better. Bearing shoulds not be too much grease we know grease has good adhesion, abrasion resistance, temperature tolerance, rust and lubricity, and can improve the high temperature oxidation resistance, delay aging, can dissolve carbon deposition, prevent poly metal abrasive dust and oil pollution, the improved mechanical wear, pressure and corrosion resistance. Understand the movement process of bearing grease, will naturally draw a conclusion: unfavorable and overmuch grease in the bearing. More grease is not only waste, but is harmful. Bearing the higher the speed, the more dangerous. The more grease filling amount, the greater the friction torque. The same filling amount, the sealed bearing friction torque is greater than the open bearing. The grease filling amounts to 60% of bearing internal space volume, friction torque no longer increases obviously. This is due to open in the bearing grease has been most extrusion, but also has lost in the sealed bearing grease. With the increment of grease filling, bearing temperature rise straight line, the same filling amount, sealed bearing temperature rise is higher than the open bearings. It is generally believed that sealed rolling bearing grease filling amount, shall not be more than about 50% of the internal space. Shawki and Mokhtar experiment show that the ball bearing, 20% to 30% in the most appropriate. How to extend the service life of high temperature bearing performance and/or use? Correct lubrication, regular maintenance, and can avoid bearing damage caused by lubrication problem. Ensure reasonable lubrication should be: 1 follow 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 ( 重新 lubrication） ； 4 monitoring equipment equipment indicating instrument, in order to detect signs of problems, such as the abnormal temperature fluctuations and/or high temperature; 5 note equipment noise or abnormal vibration; 6 observation lubricating oil leakage; 7 for lubricating oil sampling regularly, and see whether pollution. Second, if you want to improve the bearing performance, reasonable adjustment is very important. Assembly or installation, such as bearing internal clearance is too large or too small, or in some cases, the preloading load is too high, can cause early damage and shorten the life of the bearing. In addition to the cause and costly maintenance downtime, bearing assembly and improper installation may also have more negative effects, such as interfere with the operation of other parts, shorten its service life, etc. According to equipment manufacturer's manual, assembly, installation and maintenance regularly, the best way is to prevent problems. If the time is very tight, can be pushed forward adjusting device or remove the gaskets, too loose to correction of tapered roller bearing group. Bearing adjustment, on the other hand, too close, can lead to overheating damage, had to replace the bearing. Assembly bearing process must be accurate and repeatable, and can be verified after the installation is complete. In addition must also consider other component parameters, in order to optimize system performance. The previous: loss combination bearing next up: the main factors three factors can induce bearing failure, please be careful