IKO bearing limit speed problem and the nature of the noise

( 1) IKO bearing raceway groove sound sound and its control method is when bearing is running, the roller rolling on the surface of the raceway and a line of continuous sound, is unique to occur in all rolling bearings of the basic sound. General IKO bearing ring raceway is combined with other sounds. Ball bearing raceway is irregular, frequency above 1000 hz, its main frequency does not change with speed, but its total sound pressure level increases with speed to speed up. Raceway large bearings, the rolling sound of sound pressure level decrease with the increase of the viscosity; The raceway small bearings, the sound pressure level in the viscosity increases to about 20 was/s above, from decreased to increase somewhat. And the rigidity of the bearing, the greater the raceway of the lower the total sound pressure level. Such as radial clearance is too small, the total sound pressure level and race master frequency will increase sharply with the decrease of radial clearance. Method to control the sound of raceway are: choose low noise IKO bearing waviness small IKO bearings, carefully select and use conditions. Race often affect the mechanical noise, reduce the raceway can reduce the mechanical noise. ( 2) Impact of the rolling element and its control method for larger models of ball bearings or cylindrical roller bearings under pure radial load speed, due to centrifugal force is lesser, roller in the rolling body will impact the load area or race and making noises. But with the increase of rotational speed, the noise will disappear. Control method of rolling body impact sound: decrease the radial clearance, use with reasonable structure and material with kindliness IKO bearing cage. ( 3) IKO bearing of rolling mill and its control method for roll is cylindrical roller bearing in the harsh metal can occur in all occasions, mostly happens in large type bearing grease lubrication, and in the performance degradation occurred more often in grease base oil, almost does not occur when oil lubrication. In addition, more easily occur during the winter, when under pure radial load, the radial clearance prone to big occasions, and with different size, easy to happen in a certain speed range, both continuous and intermittent. External ring raceway take special processing method can prevent the occurrence of roll ring, can choose this kind of bearing, if necessary or appropriate to reduce IKO bearing radial clearance, the use of high performance grease and improve to suit the bearing parts of rigidity. Each type of IKO bearing design with unique removal process. Regardless of the bearing type, bearing must be particularly careful to be deleted. If improper operation, it might damage the bearings, shaft or shell, require expensive maintenance. For smaller bearing, a driver can help bearing removal, etc. To work closely with, or press, or have been locked in a shaft of place, can't use mechanical dismantling bearing drawing machine, bearing inner ring can be heated, to alleviate the relocation. Heat lamp or other heating equipment can be used. If a torch, it can change the performance of the bearing steel and bearing must be discarded. A, use when installation should careful not allowed powerful punch, are not allowed to use hammer percussion bearing directly, not allowed by transfer roller pressure. 2, using appropriate and accurate installation tools use a special tool, as far as possible to avoid use cloth class and short fiber, things like that. Third, try to keep IKO bearings and the surrounding environment clean dust into the bearing even invisible to the naked eye smile, also can increase the bearing wear, vibration and noise. Four, to prevent rusting IKO bearing directly take IKO bearings, with the hand to wash hands fully the sweat, and again after coated with high quality mineral oils, especially in the rainy season and summer to pay attention to rust. In some special operating conditions, bearing can get more than the life of the traditional computing, especially in the case of light load. These special operating conditions is, when the rolling surface ( Track and rolling piece) Can be separated by a lubricating oil film effectively and the surface of the limit of pollutants may cause damage. In fact, under ideal conditions, the so-called permanent IKO bearing life is possible.