According to the relevant data, the damage during the installation of plain bearings accounts for 20% of the bearing damage. How can we reduce the damage during the installation of the bearing? The following is a detailed introduction to the specific requirements for the site when installing the bearing. It is necessary to keep it dry and clean and prevent iron filings, sand, dust, moisture, etc. from entering the bearing.
Commonly used devices for plain bearings include hand hammers, copper rods, sleeves, special backing plates, screw clamps, presses, etc., and vernier calipers, micrometers, dial indicators, etc., but different tools should be selected according to different bearing types.
After choosing the correct tool, the bearing can be installed. When installing, pay attention to whether there are bruises, rust layers, wear debris, sand grains, dust, and soil. If there are any, it will cause installation difficulty. The surface of the imported bearing assembly and the parts that cooperate with it are clean.
In addition to cleaning the appearance of plain bearings and the parts that cooperate with them, it is also necessary to pay attention to whether there is a rust layer on the shaft journal, the appearance of the housing hole of the bearing seat, the end surface of the shoulder, and the connecting parts such as bushings, gaskets, end covers, etc.?If there is, it can be removed with a fine file, polished with a fine emery cloth, and then installed.
1. In terms of bearing speed, the bearing is determined based on factors such as bearing type, size, precision, cage type, load, lubrication method, and cooling method.
2. The installation and disassembly of bearings need to be disassembled and installed frequently on specific use occasions to ensure that they can be inspected and repaired according to their location. Bearings whose inner and outer rings can be installed separately, such as cylindrical bearings, needle roller bearings, and tapered bearings are very suitable for this occasion. The self-aligning ball bearing and self-aligning roller bearing of the tapered hole type also simplify the installation procedure with the help of the shaft sleeve.
3. In some cases, plain bearings need to be preloaded to increase rigidity. This procedure is generally used for deep groove ball bearings, radial thrust ball bearings, and tapered roller bearings. Changes in service and wrong cooperation will to the eccentricity of the inner and outer rings. To prevent the eccentric angle from being too large, self-aligning ball bearings, self-aligning roller bearings, or self-aligning bearing housings are the choices. The noise frequency and torque, and the rolling bearings are all manufactured according to high-precision standards, so the noise and torque are small. Deep groove ball bearings and cylindrical roller bearings are used together for occasions that have special requirements for low noise and low torque.
