INA rolling bearing before installation considerations

Rolling bearing is one of the important parts on construction machinery, poor installation will affect its use effect, even result in engineering machinery and equipment failure. INA bearing surface coated with anti-rust oil, must use clean petrol or kerosene cleaning carefully, then coated with clean, high quality or high speed high temperature lubricating grease before installation. Fully enclosed bearing not clean fuel. After rolling bearing installed, if not done carefully alignment, alignment can lead to bearing suffered another load, friction, and vibration. The use of these may accelerate fatigue and reduce the bearing life, and it might damage the other machine parts service life. In addition, the increase of vibration and friction could significantly increase the risk of energy consumption and premature failure. ( 1) Before the bearing is installed, should use the appropriate measuring tools according to the provisions of the technical requirements on the design drawing check the shaft and hole and machining quality of parts ( Such as dimensional accuracy and shape accuracy and surface roughness, etc. ) 。 ( 2) Shaft and the bearing hole assembly there such as bruising, burr, rust stain on the surface or solid particles ( Such as abrasive dust, sand, clay) Such as existence, not only can make the INA bearing installation difficulties and make the installation position is not correct, and solid particles such as falling into a bearing inner grinding effect, when rolling bearing rotating grinding or bruising bearing surface of the work, so must be carefully checked before the installation, if found to have the above defects, should be revised. For example using oil file to remove burrs, bump touch mark, rusty spot, with fine abrasive cloth lighting, and like a clean solid particles, dirt, etc. ( 3) Should be assembled with clean the surface of the gasoline, kerosene, toluene and xylene solution washing clean, with dry clean duster cloth, and then coated with a thin layer of lubricating oil, it can make the operation more convenient installation. ( 4) When installed in the open the bearing assembly, put it into the liquids such as gasoline with handle gently gently turning, to ensure the cage, encapsulated oil on the surface of the rolling element and raceway thoroughly washed clean. ( 5) When cleaning a lot of rolling bearing, with the first temperature is 90 ~ 100 ℃ heat oil pour hot to melt encapsulated oil, at the same time with seamless all mouth and no net exfoliation tools to dig the old oil, then pour hot a few minutes, then rinse with kerosene oil, clean with gasoline again finally. After washing clean, the bearing on film gloves should be worn in the workbench of dry clean cloth or paper. ( 6) Note with sealed INA bearings do not clean with this law, the seal of the internal cleaning should remain the same. In the process of operation, bearing requires correct lubrication again, perfect its performance. The method of bearing lubrication, divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, to choose suitable for conditions of use, the purpose of lubrication method. If only consider lubrication and oil lubrication. But there are grease lubrication can simplify the structure of bearing around specialty. Hydraulic pump with a rolling bearing plunger pump is the most important components of the bearing. Reduce the negative pressure in the INA bearing is to prevent the water into the basic requirements. Angular contact bearing load calculation. Oil for maintenance of locomotive bearing is very important.