Detection of bearing operation process

Rolling sound of bearing: use the sound detector to check the size and sound quality of the rolling sound of the running bearing. Even if the bearing is slightly scratched, it will emit abnormal sound and irregular sound. The sound detector can solve this problem well. If the lubrication and installation parts are appropriate, the bearing temperature will rise sharply, and the temperature will rise abnormally. At this time, the operation must be stopped and necessary preventive measures must be taken. According to a large number of test data, table 4-1 lists the average value of outer ring temperature of bearings in various machines for reference. Since the temperature is affected by lubrication, speed, load and environment, the value in the table only represents the approximate temperature range.
Bearing vibration: bearing vibration still has obvious response to bearing damage. For example, these common problems such as indentation, corrosion, crack, peeling and wear can be obviously felt during the test. Therefore, the vibration can be measured by using a special bearing vibration meter (frequency analyzer, etc.), The specific situation of the anomaly cannot be inferred from the frequency division. The measured values are different due to the service conditions of the bearing or the installation position of the sensor. Therefore, it is necessary to carry out certain operations on the measured values of each machine in advance to determine the final data.
Bearing temperature: the temperature of the bearing. Some bearing temperatures can be measured. If the oil hole can be used to directly measure the temperature of the outer ring of the bearing, it is more appropriate. Usually, the temperature of the bearing starts to rise slowly with the operation, and it will be relatively stable after a few hours. The normal temperature of the bearing will be different due to the heat capacity, heat dissipation, speed and rotation mode of the machine. The working temperature of the bearing can be monitored at any time by using the thermal sensor, which can be prepared and reminded before the accident.