From the fact that peeling, indentation, corrosion, crack, wear, etc. will be reflected in the vibration measurement of the combined bearing, the vibration of SKF Bearing is very sensitive to the damage of the bearing.
Therefore, the vibration can be measured by using a special bearing vibration meter (frequency analyzer, etc.), and the specific abnormal situation can not be inferred by frequency division.
Because the measured values are different due to the service conditions of the 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 the judgment standard.Check the Fault of SKF Combined Bearing in Operation and Take Necessary Measures
Check the Fault of SKF Combined Bearing in Operation and Take Necessary Measures
Because the SKF Bearing will emit abnormal sound and irregular sound even if there is slight peeling and other damage, it can be distinguished with a sound detector. The sound detector is used to check the size and sound quality of the rolling sound of the combined bearing in operation, which plays the role of prevention in advance.Check the Fault of SKF Combined Bearing in Operation and Take Necessary Measures
If the temperature of SKF Bearing outer ring can be measured directly by oil hole, it is more appropriate. In general, the temperature of the bearing can be inferred from the temperature outside the bearing chamber. If the lubrication and installation parts are appropriate, the bearing temperature will rise sharply and abnormal high temperature will occur.
At this time, the operation must be stopped and necessary preventive measures must be taken. Generally, the temperature of the combined bearing rises slowly with the start of operation and reaches a stable state after 1-2 hours. The normal temperature of the bearing varies with the heat capacity, heat dissipation, speed and load of the machine.
If necessary, the thermal sensor can be used to monitor the working temperature of the bearing at any time, and automatically alarm or stop when the temperature exceeds the specified value to prevent the occurrence of combustion shaft accident.Check the Fault of SKF Combined Bearing in Operation and Take Necessary Measures
When rotating SKF Bearing, it should be very smooth without abnormal noise and impurities. The combined bearing is allowed to make slight running noise during operation. If the noise is too loud or there is abnormal noise or impact sound, it indicates that the bearing is faulty.
Bearing antirust treatment adopts antirust oil with slight fragrance, and the amount is small. Make the whole combined bearing clean and fragrant. The bearing has fine chamfer and black edge at the junction of transverse and vertical surfaces. During the normal use of SKF Bearing, the part where the bearing is installed is allowed to have a certain temperature.
When touching the mechanism shell by hand, it is normal to feel that it is not hot. If the temperature of the rolling bearing is too high during use, factors such as whether the quality of the lubricating oil meets the requirements or deteriorates, and the viscosity of the lubricating oil is too high can be considered;
Or the installation mechanism is assembled too tightly and the bearing is assembled too tightly; Broken bearing cage or rolling element, etc.Check the Fault of SKF Combined Bearing in Operation and Take Necessary Measures
There are many reasons for the noise of SKF Bearing. One is the wear of the mating surfaces of the inner and outer rings of the bearing. In addition, insufficient bearing lubrication, dry friction and bearing breakage will produce abnormal sound.
It is important to keep the combined bearing and lubrication clean. Clean the surface of the machine before inspection, and then remove the parts around the bearing.Check the Fault of SKF Combined Bearing in Operation and Take Necessary Measures
The oil seal is a very fragile part, so it needs to be disassembled carefully. Do not apply excessive force, and then carefully check the oil seal and its surrounding parts. If there are bad symptoms, be sure to replace it.
The bad oil seal will lead to the damage of SKF Bearing and strict equipment shutdown.Check the Fault of SKF Combined Bearing in Operation and Take Necessary Measures