What should be paid attention to in the action of taper roller bearings？

No matter how high-performance bearings are used, if used incorrectly, the expected performance will not be obtained. The precautions for the use of taper roller bearings are as follows:

(1) Keep the taper roller bearings and their surroundings clean.
Even small dust that is invisible to the eye can have a bad effect on the bearing. Therefore, keep the surrounding clean so that dust does not penetrate the bearing.

(2) Use with care.
Give the taper roller bearings a strong impact during use, which will cause scratches and indentations, which may cause accidents. In severe cases, cracks and fractures may occur, so care must be taken.

(3) Use appropriate operating tools.
Avoid replacing existing tools, you must use the right tools.

(4) Pay attention to the corrosion of taper roller bearings.
Sweat on your hands can be the cause of rust when handling bearings. Be careful to operate with clean hands, and it is best to wear gloves as much as possible.

It is a common method for taper roller bearings to use hearing to identify irregular operation. For example, using an electronic stethoscope to detect abnormal noise of a part is used by experienced operators. A low whine sound when the bearing is in good operating condition, a sharp hissing, taper roller bearings, squeaking, and other irregular sounds usually indicate a poor operating condition of the bearing.

1. Corrosion of tile surface: Spectral analysis found that the concentration of non-ferrous metal elements was abnormal; many sub-micron wear particles of non-ferrous metal components appeared in the ferrography; the moisture content of the lubricating oil exceeded the standard and the acid value exceeded the standard.

2. Strain on the journal surface: There are iron-based cutting abrasive particles or black oxide particles in the ferrography, and there is a tempered color on the metal surface.

3. Surface corrosion of the journal: Spectral analysis found that the iron element concentration was abnormal, there were many sub-micron particles of iron composition in the ferrography, and the moisture content of the lubricating oil exceeded the standard or the acid value exceeded the standard.

4. Surface strain: There are cutting abrasive particles found in the ferrography, and the abrasive particles are non-ferrous metals.

5. Fretting wear of tile back: Spectral analysis found that the iron concentration was abnormal, there were many sub-micron wear particles of iron composition in the ferrography, and the moisture and acid value of the lubricating oil were abnormal.

Under the condition of liquid lubrication, the sliding surfaces are separated by the lubricating oil without direct contact, which can greatly reduce the friction loss and surface wear, and the oil film also has a certain vibration-absorbing ability.

High-pitched creaking noises can be caused by improper lubrication. Improper taper roller bearing clearance can also cause metallic sounds. The dents on the outer track of the taper roller bearings will cause vibration and cause a smooth and crisp sound. If it is caused by knocking scars during installation, it will also generate noise, and the noise will vary with the speed of the bearing speed. If there is intermittent noise, it means that the rolling parts may be damaged. Taper roller bearings This sound occurs when the damaged surface is rolled over. If there is contamination in the taper roller bearings, it will often cause hissing noise and serious bearing damage. Irregular and loud noises are produced.

 

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