NTN outer spherical bearing quality important influence of vibration and temperature

NTN bearing repair, maintenance, to ensure the reliability of operation, increase productivity, the economy, in order to prevent accidents in the first place, to ensure the reliability of the operation, increase productivity, economy, can ensure the good condition of outer spherical bearing to keep the original performance for a long time. Bearing cleaning: often use gasoline, kerosene as an ordinary cleaner. Removed the NTN bearing maintenance, record the appearance of the bearing, for the first time confirmed, start a remove bearing lubricant, lubricating oil sampling amount. Coarse and fine cleaning, cleaning cleaning point, respectively on the container, first put at the bottom of the metal net, so the outer spherical bearing no direct contact with the dirt from the container. 1, bearing the vibration of the bearing vibration is sensitive to NTN bearing damage, such as peeling, indentation, rust, crack and wear will be reflected in the bearing vibration measurement, therefore, 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. Measured value because of outer spherical 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. 2, the temperature of the bearing temperature of bearing, generally have a bearing on the surface of the outdoor temperature can be predicted, if using the oil hole can directly measure temperature of outer spherical bearing outer ring, is more appropriate. Usually, NTN bearing temperature as bearing operation began to rise slowly, 1 - After 2 hours to reach steady state. The normal temperature of bearing for machine heat capacity, heat dissipating capacity, rotational speed and load. 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. Using thermal device can monitor the working temperature of outer spherical bearing, and implement e. automatic alarm when the temperature exceeds or stop to prevent the shaft accidents. NTN bearing maintenance and judgment: to determine the bearing to be deleted, can be used to check the bearing after cleaning. Maintenance includes monitoring of working conditions, supplement and replacement of lubricants, remove the check regularly, it is best to keep the appropriate operation standard machine working conditions,. Maintenance operations, the sound of a rotation, vibration, temperature, lubrication condition, type bearing outer spherical bearing separation problem, you can through the rolling body, the outer ring raceway surface inspection. Check raceway, raceway, cage wear surface state, outside the spherical bearing clearance increases, and with unusual size without damage the accuracy of the fall. The separation of small ball NTN bearing, on the one hand, inner ring support levels, rotate the outer ring to confirm smoothly.