Check the lubrication method from INA railway bearing operation effects

INA bearings after installation, in order to check whether installed correctly, check for running. Small mechanical can rotate with the hand, to confirm whether to rotate smoothly. Check project has caused by foreign bodies, scars, creasing seized up, due to bad installation, installation of seat processing bad moment is not stable, because the clearance is too small, installation error, seal friction caused by the torque is too big, and so on. If there is no abnormal can start power operation. Large machinery from manual rotation, so after no-load start immediately cut off the power, machine idle, check whether there is presence of vibration, noise, rotating parts contact, etc. , confirmed after no abnormalities, into power operation. Dynamic operation, from the beginning of the no-load speed, slowly up to the rated operating conditions. Test run to check the items, whether there is abnormal sound, railway bearing temperature, lubricant leakage or discoloration, and so on. If discovery is unusual, should immediately stop, check machine, when it is necessary to remove the bearing inspection. Bearing temperature, average according to the external temperature of the bearing. But using the oil hole directly measuring the temperature of the bearing outer ring more accurate. The bearing temperature, starting operation gradually increases, usually 1 ~ 2 hours after the temperature stability. If INA bearings to install, the temperature will rise sharply, abnormal high temperature. The reason such as lubricant, bearing clearance is too small, too much bad installation, excessive friction sealing device, etc. High-speed rotation, the choice of the ways of railway bearing structure, the lubrication error and so on is also the reason. The examination such as the rotation of the bearing with a stethoscope, a strong metal noise, such as vision, irregular note that exception. Its reason has poor lubrication, shaft or precision bearing, bearing damage, foreign body intrusion, etc. Rolling bearing two kinds of commonly used lubricants lubricating oil and grease. When the peripheral speed of the shaft is smaller than 4 - 5 m/s, or the car cannot be used lubricating oil, lubricated by grease. Grease lubrication sealing structure of the method is simple, the grease is not easy to drain, little affected by temperature, plus a grease can use a long time. Lubricating oil has the advantage of small frictional resistance, and heat dissipation, it is mainly used for high speed and working environment of higher temperature railway bearings. Brand to choose according to the requirement of the car manual of lubricating oil, and car maintenance cycle change in time, released after the old oil is to add new oil after cleaning of institutions, oil should be added to the line, or refueling and flush ( Depending on the auto specific structure, requirements) , and not more. Bearing is a kind of important mechanical components, can give full play to the performance of a mechanical device depends on the bearing lubrication is proper, can say, is the guarantee for normal operation of the INA bearing lubrication necessary condition, it for the improvement of railway bearing capacity and service life of bearing plays an important role. No matter what form of lubrication, lubrication in the bearings can play a role as follows: ( 1) To reduce the friction between the metal, slowing its wear and tear. ( 2) The formation of oil film increase the contact area, reducing the contact stress. ( 3) Ensure that bearing under high frequency contact stress, the normal operation over a long period of time, extend the fatigue life, 4) Eliminate friction heat, reduces the working surface of bearing temperature, to prevent burns. ( 5) Dust, rust and corrosion protective role. Therefore, correct lubrication is very important for the normal operation of INA bearings. Railway bearing lubrication design content mainly includes: the determination of reasonable lubrication methods in course of selecting lubricant and lubricant use quantitative juice and the determination of oil change period.