How to repair worn fan IKO bearings

Faulty fans and IKO bearings are not unrepairable. I will introduce a repair method now. The material is very simple, just a small piece of cans of aluminum and a little bit of butter (the butter should be clean and free of impurities).

1. First clean the dust on the fan to avoid dust from entering the IKO bearing during the installation process;

2. Remove the IKO bearing seal sticker and remove the bayonet pin on the shaft;

3. Wipe the residual oil in the IKO bearing with a clean tissue or a soft cloth, and then wipe the shaft clean;

4. Add a little butter to the IKO bearing. The principle is to keep it from being too much to avoid seriously affecting the speed;

5. Cut the aluminum skin of the can to cut a disc as large as the outer diameter of the IKO bearing, and dig a small hole in the middle that can pass through the shaft and place it between the IKO bearing and the bayonet. , to reduce the distance of the IKO bearing axial movement and parallel movement. If the gap is large, it is necessary to put a few thickening on the pad to make the IKO bearing's front and rear moving distance below 0.5mm;

6. Seal the oil seal, add a little butter, and finally put the fan back into the graphics card. Try connecting the power, you will find that the sound is much smaller, and this can be used for at least 2 years. But need to be reminded, although the sound is a little smaller, but because of the limited manual accuracy, the speed will drop a little.

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Notes on regular maintenance of TIMKEN bearings

When inspecting TIMKEN bearings that have been removed during regular inspection and operation of TIMKEN bearing equipment and replacement of peripheral parts, it is necessary to judge whether the TIMKEN bearing parts can be reused and recorded in good or bad. It is also necessary to carefully investigate and record the TIMKEN bearings and appearance that have been removed. In order to clarify and investigate the remaining amount of lubricant, after sampling, the TIMKEN bearing should be cleaned well.

Next, check the raceway surface of the TIMKEN bearing, the condition of the rolling surface and the mating surface, and the wear state of the cage, etc., for damage and abnormality, especially to observe the running track of the raceway surface. To determine whether the TIMKEN bearing can be used again, it is necessary to consider the degree of damage to the TIMKEN bearing, the machine performance, importance, operating conditions, inspection cycle, etc.

If the TIMKEN bearing is found to be damaged or abnormal, please find out the cause according to the TIMKEN bearing damage phenomenon and formulate countermeasures. In addition, the inspection results, if there are the following defects, TIMKEN bearings can no longer be used, need to replace the new TIMKEN bearings.

a. Cracks and fragments appear in any of the inner and outer rings, rolling elements, and cages.

b. Any one of the inner and outer rings and the rolling elements are peeled off.

c. The raceway surface, the ribs, and the rolling elements have significant jamming.

d. The cage is worn out or the rivets are loose.

e. The raceway surface, rolling elements are rusted and flawed.

f. There are significant indentations and marks on the rolling surface and the rolling elements.

g. There is creep on the inner diameter surface of the inner ring or the outer diameter of the outer ring.

h. Superheated and discolored.

i. Grease seal TIMKEN bearing seals and dust caps are damaged.

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