Treatment Of Scars On Timken Imported Bearings During Installation
Treatment Of Scars On Timken Imported Bearings During Installation
2022年1月4日
Non Contact Sealing Of Rolling Bearing
Non Contact Sealing Of Rolling Bearing
2022年1月4日

Disassembly Skills And Maintenance Methods Of Ntn Bearing

Maintenance Methods Of Ntn Bearing

1. Loosen the bolts fixing the bearing pedestal. Remove the NTN inlet bearing together with the bearing Maintenance Methods Of Ntn Bearing pedestal from the shaft. Note: before removing the NTN bearing seat at one end of the shaft, loosen the bolt of I bearing seat at the other end of the shaft to avoid damage to the bearings at both ends due to mutual force.

2. First loosen the locking screw on the eccentric sleeve of NTN bearing with an Allen wrench, then insert a Maintenance Methods Of Ntn Bearing small iron rod into the counterbore on the eccentric sleeve of the top cover, and loosen the eccentric sleeve against the rotation direction of the shaft.

Many people use improper installation methods in the installation of Maintenance Methods Of Ntn Bearing bearings, resulting in the damage of NTN bearings. So how to correctly install NTN bearing? I hope you can have a more comprehensive understanding of the installation and disassembly of bearings:

For bearing rings with clearance fit, it is recommended to apply a thin layer of anti creep corrosion agent on the Maintenance Methods Of Ntn Bearing mating surface to prevent friction corrosion between the mating surfaces.

390000 series outer spherical bearings fix the bearing inner ring and the shaft through the eccentric sleeve, and the hexagon socket screw on the eccentric sleeve plays a fastening role. During maintenance, many operators cannot disassemble and assemble this NTN bearing, so it is necessary to introduce the technical points and precautions for disassembling and assembling 390000 series outer spherical NTN bearing:

Correct installation is very important for the use of NTN bearings. Maintenance Methods Of Ntn Bearing I hope you can use the correct installation method in the future.

During installation, mechanical, heating or hydraulic methods can be selected according to its type and size. The force exerted on the bearing during installation must not be transmitted from one bearing ring to another NTN bearing ring through the rolling element, otherwise the raceway may be damaged. However, under no circumstances should the bearing ring, cage, rolling element or seal be directly knocked. install

Disassembly Skills And Maintenance Methods Of Ntn Bearing

3. Install eccentric sleeve. First put the eccentric sleeve on the eccentric step of the inner sleeve of NTN bearing and tighten it by hand along the Maintenance Methods Of Ntn Bearing rotation direction of the shaft. Then insert or counter the small iron rod into the counterbore on the eccentric sleeve.

Knock the small iron rod along the rotation direction of the shaft with a hand hammer to make the eccentric Maintenance Methods Of Ntn Bearing sleeve firmly installed, and then lock the Allen screw on the eccentric sleeve.

4. Do not tighten the bolts for fixing the NTN bearing seat, but make the bearing sleeve rotate in the bearing seat. Then fasten the bearing seat bolts. Similarly, install the bearing and seat at the other end of the same Maintenance Methods Of Ntn Bearing shaft, rotate the shaft for several turns, and let the NTN bearing itself automatically align.

5. Apply lubricating oil on the mating surface of bearing pedestal and Maintenance Methods Of Ntn Bearing bearing, and install NTN bearing into bearing pedestal. Then put the assembled bearing and NTN bearing seat on the shaft. Push it to the required position for installation.

6. Before installing the NTN bearing on the shaft, the fixing pin of the NTN bearing sleeve must be pulled out, the journal surface must be polished smooth and clean, and the journal shall be coated with oil for rust prevention and lubrication (the bearing is allowed to rotate slightly on the shaft).

1. Clean the dust on the fan to avoid dust entering the bearing during installation;

2. Tear off the self-adhesive of the bearing seal and remove the snap pin on the shaft;

3. Wipe the residual oil in the bearing with clean cotton paper or soft cloth, and then wipe the shaft rod;

4. Add a little butter into the bearing. The principle is to prefer less to more, so as not to seriously affect the speed;

5. Then cut off the aluminum sheet of the can, cut a disc as large as the outer diameter of the bearing snap pin, dig a small hole in the middle that can just pass through the shaft rod, and pad it between the bearing and the snap pin to reduce the distance between the axial movement and parallel movement of the bearing.

If the clearance is large, several thicknesses shall be padded to make the forward and backward movement distance of the bearing less than 0.5mm;

6. Seal the oil seal, add a little butter, and then install the fan back into the graphics card. Try connecting the power supply, and you’ll find that the sound is much lower, and it can last at least 2 years. However, it should be noted that although the sound is a little lower, the speed will decrease slightly due to the limited manual accuracy.