Installation of Import Bearings
The installation of import bearings is a big part of the selection, installation, lubrication and maintenance of machine components and has important influence on the performance and life of the machine. It is known as the heart of the machine, and proper installation of the bearing is very important. In general, the following steps should be taken when installing import bearings:
1. Selection and purchase
The first step in the installation process is to select and purchase the imported bearings according to the needs of the machinery. We must pay attention to the replacement of bearing models for the same purpose. When purchasing, we should select professional and high-quality bearing suppliers.
2. Preparation and cleaning
Before the installation of the imported bearing, it is necessary to lay out all the bearing components related to the bearing, such as circular shims (washer plates) and fixing screws, which are necessary for the installation. Cleaning is also necessary when installing imported bearings. Bearings, other parts and machines should be clean and clean before installation and installation.
3. Check the equipment
Check the mating parts of bearings and the installation surfaces, such as shafts, housings, etc., and make sure that there is no obvious distortion on the surface, otherwise it will cause poor fit and increased vibration. Relevant geometric parameters should be selected for inspection.
4. Heating
The heating temperature of imported bearings should be 80-110℃, and the heating area should be as small as possible. Do not exceed the temperature range, in order to avoid deformation, damage and reduce the bending structure. Therefore, professional skills and knowledge are required in the heating process.
5. Installation of imported bearings
The assembled bearing should be installed on the line corresponding to the bearing bore surface on the shaft, and the opposite side should be installed on the corresponding bearing seat of the machine. The circular shim (washer) is used for adjustment to ensure that the bearing can rotate smoothly and that the installation position is stable and firm.
6. Preloading force
For imported bearings, preloading force is an important factor to ensure their work accuracy, improve bearing life and reduce vibration. When installing the bearing, the required preloading force should be selected in advance according to the working condition of the bearing, so as to better protect the bearing.
7. Fixing and finishing
Generally, thermal shrinkage fitting and hydraulic press fitting are often used for the fixing of imported bearings. The former is suitable for the fixing of small bearings, while the latter is suitable for large bearings with particularly large interference. The mounting screws shall not be tightened before and after installation, and shall be tightened after the bearing is installed at a normal temperature.
The installation of imported bearings is an important part of the selection, installation, lubrication and maintenance of machine components. If the steps are followed and the instructions are followed, it will ultimately provide not only a reliable and stable running of the machine, but also an extended service life
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