Capabilty Analysis and Testing Method of a Sliding Bearing
When we are using sliding bearings, if we find that the temperature is very high, we should stop the operation of the equipment quickly, find out the reason, and deal with it according to the solutions provided above, but it may be due to different causes of bearing heat. Therefore, the solution is also different, so it is still necessary to deal with specific situations and complete with the help of technicians.
First, check the vibration of the sliding bearing in operation. The peeling, indentation, rust, crack, abrasion, etc. will be reflected in the vibration measurement of the sliding bearing. The vibration of the sliding bearing is very sensitive to the damage of the bearing. Therefore, through the use of A special sliding bearing vibration measuring device (frequency analyzer, etc.) can measure the magnitude of the vibration, and the specific abnormal situation cannot be inferred through the frequency division. Since the measured values ??are different due to the use conditions of the sliding TIMKEN bearing or the installation position of the sensor, it is necessary to analyze and compare the measured values ??of each machine in advance to determine its judgment standard.
Second, check the sound of the sliding bearing when it is rolling. Because the bearing will emit abnormal and irregular sounds even if it is slightly peeled off and other damages, it can be distinguished by a sound meter. The size and quality of the rolling sound of sliding bearings are checked, which plays a preventive role in advance.
Third, check the temperature of the sliding bearing when it is rotating. It is more appropriate if the oil hole can be used to directly measure the temperature of the outer ring of the sliding bearing. Under normal circumstances, the temperature of a sliding bearing can be estimated based on the temperature outside the bearing housing. If the lubrication and installation parts are proper, the temperature of the sliding bearing will rise sharply and abnormally high temperature will occur. At this time, the operation must be stopped and necessary precautions must be taken.
Generally, the temperature of the sliding bearing slowly rises as it starts to run. The introduction and application of the XXX bearing coating removal process will reach a stable state after 1-2 hours. The normal temperature of the sliding bearing varies with the heat capacity, heat dissipation, speed and load of the machine.
Whether on the shaft or in the bearing seat, XXX bearings are required to fix their positions in three directions: radial, axial and tangential directions. Radial and tangential positioning is achieved by tightly fitting the bearing rings. However, the axial positioning only uses tight fitting in a few cases; generally, axial limiting parts, such as end caps and retaining rings, are used to connect the shaft The direction position is limited to the clearance range.