The rolling bearing is a precision part with a high precision. If it is not properly installed, it will lose its precision and performance. In severe cases, it will cause bearing failure. Therefore, the site where the bearings are mounted and the installation tools must be cleaned to prevent various particulates from being carried into the bearings. When installing and disassembling the bearing, it should not be directly hammered. Uniform pressure should be applied. When the shaft and the bearing are engaged with a large interference, the bearing should be installed immediately after heating.