Precautions for bearing use
Bearings play an important role in our lives. INA Bearings are widely used in mechanical equipment. How should we use bearings in our lives? Precautions for bearing use The following analysis, use it with caution. A strong impact on the tapered roller bearing during use can cause scars and indentations, which can cause accidents. In severe cases, it will crack or break, so be careful.
Keep the tapered roller bearing and its surroundings clean, even small dust invisible to the eyes will have a bad effect on the bearing. Therefore, keep the surroundings clean to prevent dust from entering the bearing. Use appropriate operating tools. Avoid replacing with existing tools, you must use appropriate tools. Pay attention to the corrosion of tapered roller bearings. When handling bearings, sweat on your hands can cause rust. Pay attention to the operation with clean hands and try to wear gloves.
It is a very common method for tapered roller bearings to use hearing to identify irregular operation. For example, it is used by experienced operators to detect abnormal noise of a certain part with the help of an electronic stethoscope. If the bearing is in good running condition, it will make a low whine sound, if it makes a sharp hissing sound, tapered roller bearing, squeaking sound and other irregular sounds, it usually indicates that the bearing is in bad running condition.
Strain on the journal surface: there are iron-based cutting abrasive particles or black oxide particles in the iron spectrum, and there is a tempering color on the metal surface. Surface strain: cutting abrasive particles are found in the iron spectrum, and the abrasive particles are non-ferrous metals. Corrosion of tile surface: Spectral analysis found that the concentration of non-ferrous metal elements is abnormal, and there are many sub-micron wear particles of non-ferrous metal components in the iron spectrum, and the water content of the lubricating oil exceeds the standard, and the acid value exceeds the standard.
Corrosion of journal surface: Spectral analysis found that the concentration of iron is abnormal, there are many sub-micron particles of iron in the iron spectrum, and the moisture or acid value of the lubricant exceeds the standard. Fretting wear on the back of the tile: Spectral analysis found that the iron concentration is abnormal, there are many iron submicron wear particles in the iron spectrum, and the lubricating oil moisture and acid value are abnormal.
Under liquid lubrication conditions, the sliding surface is separated by the lubricating oil without direct contact, and friction loss and surface wear can be greatly reduced. The oil film also has a certain vibration absorption capacity. The sharp squeaking noise may be due to improper lubrication. Caused. Inappropriate bearing clearance can also cause metallic noise. The dent on the track of the outer ring of the tapered roller bearing will cause vibration and cause a smooth and crisp sound. If it is caused by knocking scars during installation, it will also produce noise. This noise will vary with the speed of the bearing. If there is intermittent noise, it means that the rolling elements may be damaged. This sound of tapered roller bearings occurs when the damaged surface is rolled over. If there are pollutants in the bearing, it will often cause a hissing sound. Serious bearing damage will Produce irregular and loud noise.