Check the INA bearing the work state of sound reasons

How to check the work state of INA bearings in operation, first from the vibration of the bearing, the rolling temperature and to talk about the three aspects: first is to check the bearing vibration in the working situation from peeling, indentation, rust, crack and wear will be reflected in the bearing vibration measuring, INA bearing vibration damage of bearing is very sensitive, so, through the use of special bearing vibration tester ( Frequency analyzer, etc. ) Can measure the size of the vibration, through frequency points cannot deduce the abnormal situation. Due to the measured values of bearing or sensor installation position and different using conditions, thus requiring prior to each machine is analyzed by the measured value of the determined after judgment standard. The voice of the second is to check when the rolling bearing situation for INA bearings even with slight stripping damage, such as would an exception and irregular, and therefore with the sound of the measuring device can distinguish, USES the sound device, bearing in operation to check the size of the rolling sound and quality, have the effect of prevention in advance. The last is to check the temperature of the bearing rotates if using the oil hole can directly measure temperature of bearing outer ring, is more appropriate. In general, INA bearing temperature, average according to the bearing on the surface of the outdoor temperature can be predicted. If the appropriate lubrication, installation department, the bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions. Usually, the temperature of the bearing with operation began to slowly rise, 1 - After 2 hours to reach steady state. The normal temperature of bearing for machine heat capacity, heat dissipating capacity, rotational speed and load. When necessary, the use of thermal device can monitor the working temperature of bearing, and implement e. automatic alarm when the temperature is more than the household or stop to prevent the shaft accidents. 'Root cause analysis: the motor no-load running is similar as the buzzer sounds, and abnormal axial vibration motor, open or shut down from time to tome' om-ing 'voices characteristics: multiple lubrication condition is bad, and in the winter of ball bearing motor, main shaft is self-aligning performance is bad, under the influence of the axial vibration of an unstable vibration solution, with good lubricating property oil B, preload, reducing installation error C, using radial clearance of small bearing D, improve motor bearing E rigidity and strengthen of bearing mind note: play the role of substantial improvements in the first five, using small groove curvature, 02 01 big groove curvature. . 。 。 'Specific characteristics: voice frequency change with INA bearing rotating speed, and the parts surface waviness is the main cause of the noise. Solution: A, improve the bearing raceway surface processing quality, reduce waviness amplitude B, C, bruised and cooperate with the fixed clearance pre-tightening force, check the free end bearing operation, improve the precision of the shaft and bearing installation method, characteristics of temperature: INA bearings after operation, the temperature is beyond the requirements of the scope of reason analysis: A, too much grease, lubricants increases the resistance of B, the clearance is too small to cause excessive internal load friction C, D, sealing equipment installation error E, bearing the crawling of the solution: A, choose the correct grease, use appropriate B, correct clearance pre-tightening force and cooperate, check the workings of the free end bearing C D, improve the accuracy of bearing seat and installation method, improvement of sealing form 7, bearing feel bad characteristics: with the hand feel when he held A bearing rotating rotor bearing impurities inside, blocking reason analysis: A, clearance is too large, with the inner diameter and axial improper C B, channel damage solution: A, B smaller clearance as soon as possible, the selection of tolerance zone C, improve accuracy, reduce the channel damage D, selection of oils and fats