1. Tolerance control and selection of shaft and bearing room

　　The genuine licensed NSK bearing should rotate flexibly after being pressed into the bearing without any feeling of blocking. If there is obvious inflexible rotation, it means that the size of the shaft is too large. If the NSK bearing is pressed into the shaft when it is rotated by hand, there will be a slight vibration feeling, it may be that the tolerance of the shaft is too large or the roundness of the shaft is not good. Therefore, when controlling the tolerance of the shaft and the bearing chamber, the roundness must be controlled. At present, most manufacturers in our country only control the tolerance and not the roundness.

2. Prevent assembly of foreign objects

　　When the NSK bearing is installed on the rotor for dynamic balancing, it is easy to enter the iron filings generated during the dynamic balancing into the NSK bearing, so it is best to perform dynamic balancing before installing the NSK bearing. For the convenience of assembly, some manufacturers apply some oil or grease in the bearing chamber for lubrication effect during assembly, but it is often difficult for operators to control the amount. If oil or grease accumulates in the NSK bearing chamber a lot, it will rotate in the NSK bearing. It is easy to enter the NSK bearing along the shaft. It is best not to apply oil or grease to the bearing room of Japan NSK. If it is not possible to apply it, it must be controlled not to accumulate in the bearing room.

3. About NSK bearing assembly method

　　Because NSK bearings are high-precision products, improper assembly can easily cause damage to the NSK bearing raceway and cause damage to the NSK bearing. The NSK bearing should have a special mold when assembling, and it cannot be knocked at will. When the shaft is pressed into the shaft, only the small circle can be pressed. Air pressure or hydraulic pressure is required for assembly, and the upper and lower molds should be outside the horizontal state during press-fitting. If there is a tilt, the NSK bearing channel will be damaged due to force, which will cause the NSK bearing to produce noise.

4. About preventing paint rust

　　Paint rust frequently occurs when the sealed motor is assembled, and the sound is normal. After a long time, the abnormal noise of the motor becomes very large. The NSK bearing is severely rusted when it is removed. In the past, many manufacturers thought it was the problem of NSK bearings. After our continuous publicity, now the motor factory has realized that the problem is mainly the insulating paint. This problem is mainly because the acidic substance volatilized from the insulating paint forms corrosive substances at a certain temperature and humidity, which causes the NSK bearing to be damaged after corroding the NSK bearing channel. At present, the problem can only be the selection of good insulating paint, which needs to be dried and then assembled.

　　The life of NSK bearings is closely related to manufacturing, bearing quality, assembly, and use. Each link cannot be pulled down and must be done well, so as to ensure that the bearing is running in the best condition and improve work efficiency. To extend the service life of NSK bearings.
Contact us to buy NSK Bearing HR32228J.

　　Incorrect disassembly of vibrating screen NSK bearings can easily lead to NSK medium and thick internal damage, which will directly lead to bearing failure. Therefore, be extra careful when disassembling the vibrating screen NSK imported bearings. The shaft must be supported when disassembling, otherwise the consequences will be very serious. Seriously, it is best for practitioners to learn some professional knowledge about disassembling the vibrating screen.

1. Disassembly of vibrating screen NSK bearing periphery

　　Remove the outer ring of the interference fit, and set several screws for extruding the outer ring on the circumference of the shell in advance, and tighten the screws evenly on one side. Disassemble on one side. These screw holes are usually covered with blind plugs, vibrating screen tapered roller bearings and other separable bearings. Several cuts are provided on the housing shoulder. At this time, gaskets are used, and then they are removed with a press or tapped slowly. Disassemble.

2. Disassembly of the cylindrical bore bearing of the vibrating screen

　　When disassembling the inner ring, it is actually the easiest to use a press to disassemble and pull out. At this time, pay attention to let the inner ring bear its pulling force. The inner ring of large-scale vibrating screen bearing adopts oil pressure method. Oil pressure is applied through the oil hole provided on the shaft to make it easy to draw. NSK bearings with large width are combined with the hydraulic method and drawing fixtures for disassembly operations. The method of drawing after heating the part in a short time to expand the inner ring.

3. Removal of tapered bore bearings

　　When disassembling small NSK imported bearings with adapter sleeves, you need to fasten the support inner ring on the bearing, then turn the nut back several times, and knock it off with a spacer or a hammer.