Bearing mounted to the rotor on balancing very easy to generate dynamic balance when iron filings into the bearing, so it is best fitted to do balancing TIMKEN bearings. Some manufacturers in order to facilitate assembly, the assembly in the bearing indoor coated with oil or grease lubrication effect, but often the operator is difficult to control, if the oil or grease in the bearing chamber accumulates more in the bearing rotation easily along the axis of the rolling bearing internal. Bearing the best is not coated with oil or grease, such as non-coated non-will have to control not in bearing indoor accumulates.

Bearing sound equal to the raceway sound coupled with the other sounds. The ball bearing raceway sound is irregular, the frequency above 1000Hz, its main frequency does not vary with speed change, but its total sound pressure level increased with the accelerated speed. Bearing raceway sound, the raceway sound of the sound pressure level is reduced with increasing viscosity; raceway sound small bearings, its sound pressure level increase in the viscosity to about 20mm2 / s or more by a reduction in transfer is somewhat increased. Bearing rigidity greater the total sound pressure level, the lower raceway sound. If the radial clearance is too small, the raceway sound pressure level and frequency will follow the radial clearance to reduce sharply increase. Control raceway sound: use low-noise, TIMKEN bearing waviness of small bearings, carefully choose to use the premise. The raceways sound often affect the mechanical noise, reduce the the raceways sound can reduce the mechanical noise.

Move the impact of sound and its larger models of the control method of ball bearings or cylindrical roller bearings in the low-speed operation under pure radial load, due to the smaller move the centrifugal force of the body, in the non-load the move will impact the cage or raceway noises. Followed the progress of the speed, this sound will disappear. Move the body of the impact sound control methods are: appropriate to reduce the radial clearance, the use of fair structure of materials and wan cage TIMKEN bearings.

The jarring sound and its control method jarring sound of rolling bearings cylindrical roller bearings in all occasions that may occur harsh and impolite metal friction sound, mostly took place in greased large models bearing, and in the function of base oil degradation grease more likely to have almost no oil lubrication. In addition, during the winter are more prone to easily occur when under pure radial load, radial clearance big occasions and with different model size, easily occur in a particular speed range, both on a continuum will intermittently thrown. External ring raceway to take special processing methods to prevent the jarring sound of the boom, these bearings can be used when necessary, or appropriate to reduce TIMKEN bearing radial clearance, the use of the excellent function of the grease and progress with the bearing to match parts rigidity.

The paint rust is characterized by multiple sealed type motor, the motor assembly, sound good, but put in the warehouse after some time, a large motor abnormal sound change, remove the bearing with serious rust phenomenon. The past, many manufacturers will TIMKEN bearings, motor factory has realized that through our continuous publicity, varnish. The main problem is because the insulating paint out of the volatile acid formed under a certain temperature, humidity, corrosive substances, the order of the channel corrosion lead to bearing damage. The problem can only be selected good insulating paint, and assembly ventilation for some time after drying.



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