INA flanged cause temperature rise in check what issues should pay attention to the problem

taper roller bearing temperature rises main reasons: First: oil quality is bad? If the lubricant viscosity can lead INA bearing temperature rise;
Second: the bearing mechanism assembly if too tight, lack of space can lead flange bearing temperature rise;
Third: The bearing assembly too tight can lead to bearing temperature rise;
Fourth: bearing ring on the shaft or bearing housing turn can lead to elevated temperatures;
Fifth: bearing load is too large can lead to bearing temperature rise;
Sixth: If the rolling element bearing retainer or broken, it can lead to bearing temperature rise.
    INA bearings pressed into the bearings should be flexible rotation without a sense block. If significant rotation is not flexible, it indicates that the shaft size is too large, tolerance to downward. Such as bearings pressed into the shaft turned by hand obvious "imperfections" sense, it may be too much tolerance of the shaft or shaft roundness bad. So good control shaft and the bearing housing tolerance should also control the roundness, many domestic manufacturers only tolerance control, no roundness control.
    Because flange bearings are precision products, such as improper assembly is very easy to damage the angular contact ball bearing channel, leading to bearing damage. INA bearings in the assembly should have a dedicated mold and can not beat the pressed into the shaft when the force only a small circle, the circle can only push a large circle force. Assembly requires the use of pneumatic or hydraulic, press-fit upper and lower mold to remain outside the state level, if inclined bearing channel will lead to damage due to power, leaving the bearing guide ring.
    Bearing mounted to the rotor can easily do balancing balancing generated when the iron filings into the INA bearings inside, so it is best to do before loading Bearing balancing. There are some manufacturers in order to facilitate assembly, the assembly in the bearing chamber coated with some oil or grease lubricant effect, but the operator is often difficult to control the amount, if the oil or grease in the bearing chamber accumulates more in the bearing rotation is easy access along the shaft flange bearing. Bearing chamber preferably not coated with oil or grease, such as non-coated bearings shall not be have to control indoor accumulates.
    Paint rust is characterized by multiple in sealed-type motor, motor in the assembly sounds good, but put in the warehouse for some time, the motor becomes very abnormal sound, remove the INA bearings have severe rusting. Many manufacturers will be considered to be flanged bearing problem, through our continuous publicity, and now the motor plant has been realized mainly insulating paint problems. The problem is mainly because the insulating paint out of the volatile acidic substance at a certain temperature, humidity, the formation of corrosive substances cause corrosion of the bearing channel bearing damage. The problem can only be a good selection of insulating paint, and after a period of time after drying ventilation assembly.