Analysis: NSK bearing cleaning installation precautions
(1) When cleaning a large number of NSK bearings, first use hot oil with a temperature of 90-100 °C to melt the encapsulating oil, and use a seamless and non-dusting tool to dig all the old oil and then boil for a few minutes. Then rinse the oil with kerosene and then clean it with gasoline. After cleaning, the NSK bearing should be placed on a clean cloth on the workbench or on the paper to dry.
(2) Before the NSK bearing is installed, the machining quality of the shaft and the seat hole and related parts (such as dimensional accuracy, shape accuracy and surface roughness) should be checked with appropriate measuring tools according to the technical requirements on the design drawings.
(3) Open the NSK bearing package at the time of installation, immerse it in the above-mentioned gasoline and other liquids to gently rotate the hand, and ensure that the cage, the rolling element and the surface of the raceway are thoroughly cleaned.
(4) The surface of the assembly should be cleaned with a clean solution of gasoline, kerosene, toluene or xylene, and dried with a clean rag, and then coated with a thin layer of lubricant, which makes the installation operation more convenient.
(5) Note that the sealed NSK bearing can not be cleaned by this method, and the inside of the seal should be kept as it is.
(6) If there are bumps, burrs, rust spots or solid particles (such as wear debris, sand, dirt) on the assembly surface of the shaft and the bearing housing hole, it will not only make the NSK bearing difficult to install and the installation position is incorrect, but also If the solid particles fall into the NSK bearing, it will act as a grinding. When the NSK bearing rotates, it will wear or scratch the working surface of the NSK bearing. Therefore, it must be carefully inspected before installation. If any defects are found, they should be corrected. . For example, oil mites are used to remove burrs, bumps, rust spots, and light sanding, such as cleaning solid particles, dirt, and the like.
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