How to keep the TIMKEN bearing limit speed of longevity

Bearing in loaded on the rotor dynamic balance when it is easy to dynamic balance of iron into the bearing inside, so it is best to do dynamic balance the TIMKEN bearing before. There are some manufacturers in order to convenient assembly, assembly in bearing indoor coated with some oil or grease lubrication effect, but usually operators good amount of it is hard to control, if oil or grease in the bearing interior storing up more, in the bearing rotates along axis to the rolling bearing inside easily. Bearing is best not to apply oil or grease, if must apply to control shall not be storing up in bearing interior. General is equal to the raceway bearing voice and other sound. 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 will follow the decrease of radial clearance and main frequency increased dramatically. Method to control the sound of raceway are: choose low noise TIMKEN bearing is bearing waviness is very small, that is, carefully choose to use the premise. Race often affect the mechanical noise, reduce the raceway can reduce the mechanical noise. Impact of the moving body and its control method for larger model of ball bearings or cylindrical roller bearings under pure radial load low speed, small, because of the moving body centrifugal force in the move body will impact the load area or race and making noises. But with the progress of speed, the noise will disappear. To move body impact noise control methods are: decrease the radial clearance, use with reasonable structure and material of mild TIMKEN bearing cage. Rolling bearing of rolling mill rolling mill and its control method is cylindrical roller bearing can occur on all occasions sharp metal friction sound when most needed is least heeded, mostly happens in large type bearing grease lubrication, and function in the base oil degradation occurred more often in grease, almost does not occur when oil lubrication. In addition, more easily occur during the winter, when under pure radial load, the radial clearance of big occasions occur easily, and with different size, easily happen in a certain speed range, both continuous and intermittent flush. External ring raceway take special processing method can prevent roll ring flush, can choose this kind of bearing, if necessary or appropriate to reduce the TIMKEN bearing radial clearance, good use function of grease and progress to suit the bearing parts of rigidity. Rust paint is characterized by multiple in sealing type motor, the motor sound is very good, when it is assembled but put some time in the warehouse, the motor sound is very big, remove the bearing has serious rust phenomenon. Before a lot of manufacturers will think is a problem of TIMKEN bearings, through our continuous publicity, motor factory now have realized mainly is a question of insulating varnish. Acid varnish comes out of the problem is mainly due to the formation of corrosive substances under certain temperature and humidity, the channel after the corrosion result in bearing damage. The problem now is only to choose good insulating paint, after drying and ventilation assembly after a period of time.