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Bella2021.06.16 16:44

Click here for more details about FAG NUP409 bearing


 Whether the NSK bearing is installed correctly will directly affect the accuracy, life and performance of the bearing during use.

  (1) When cleaning a large number of NSK bearings, first use hot machine oil at a temperature of 90~100℃ to melt the encapsulating oil. At the same time, use a seamless and chip-free tool to dig out all the old oil, and then blanch it for a few minutes. Then rinse with kerosene to remove the engine oil, and finally clean it again with gasoline. After cleaning, wear film gloves and place the NSK bearing on a clean cloth or paper on the workbench to dry.
  (2) Before the NSK bearing is installed, you should use appropriate measuring tools to check the machining quality of the shaft, seat hole and related parts (such as dimensional accuracy, shape accuracy, surface roughness, etc.) according to the technical requirements on the design drawings.
  (3) Open the NSK bearing package before installation, immerse it in the above-mentioned gasoline and other liquids and rotate it gently by hand to ensure that the cage, rolling elements and the sealing oil on the surface of the raceway are thoroughly cleaned.
  (4) The assembly surface should be cleaned with clean gasoline, kerosene, toluene or xylene and other solutions, and dried with a clean cloth, and then coated with a thin layer of lubricating oil, which will make the installation and operation more convenient.
  (5) Note that NSK bearings with seals cannot be cleaned by this method, and the inside of the seal should be kept intact and cannot be cleaned.
  (6) If there are bumps, burrs, rust spots or solid particles (such as abrasive debris, sand, mud) on the assembly surface of the shaft and the bearing seat hole, it will not only make the installation of the NSK bearing difficult and make the installation position incorrect, but also If solid particles fall into the NSK bearing, it will have a grinding effect. When the NSK bearing rotates, it will scratch or scratch the working surface of the NSK bearing. Therefore, it must be carefully checked before installation. If the above defects are found, they should be corrected. . For example, use an oil file to remove burrs, raised bumps, and rust spots, and polish with a fine emery cloth. Another example is to clean solid particles and dirt.

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