Rolling bearings can be found in a variety of mechanical equipment. Bearings must meet increasingly strict conditions as equipment and other attributes are required on the market. Their performance is also increasing in diversity. To select the right bearing among a wide range of sizes and structures, it is necessary to take into account different perspectives. In selecting a bearing it is usually considered that the bearing arrangement, the ease of installation and disassembly of the bearing as well as its size and market, depending on the available space, will determine the bearing structure. Comparative study of design life and durability limits of different bearings in various machines while determining bearing sizes. Bearings tend to believe that the grease wears out over time. However, it is important to also consider the fatigue life of grease, low noise, and wear resistance.

In addition to selecting bearings according to their specific uses, you may also need to select bearings with special requirements for accuracy, clearance, cage design, grease, etc. There is no set order or rule to follow when selecting bearings. Priority should be given to the bearing’s performance and other related issues, as well as its practicality. It is important to maintain the bearing to ensure that it maintains its original performance as much as possible. This will prevent accidents, increase productivity, and improve the economy. Regularity and quality of work in mechanical maintenance and operation. Monitoring the operating status, replacing or replenishing lubricants, and performing regular inspections and removal are all part of this. In the maintenance process, bearing rotation noise, vibration, temperature and lubrication condition are all important.

Cleaning the bearing: Remove the bearing to be repaired, note the first appearance of the bearing, confirm the amount of remaining lubricant and sample it after inspection. Then clean the bearing. Gasoline and kerosene can be used as cleaning agents. To clean, remove the bearing, clean and finely wash the sub-thickness. Place it in a container and place the bottom of the mesh metal first, so that dirt in the container doesn’t directly contact the bearing. If the bearing is dirty and rotates, it can damage the rolling surface. Use a brush for general cleaning and to remove sticky materials. Then, wash the oil into fines. The fine cleaning method is to rotate the bearing and wash the oil from one side while rotating the bearing. The cleaning oil should also be kept clean.

Bearing maintenance and judgement: To determine if the bearing can disassembled and examined after cleaning. Checking the raceway and raceway surface, cage wear, bearing clearance, and dimensional accuracy improvements, have nothing whatsoever to do with damage or abnormalities. The outer ring of non-separable ball bearings is rotated while the inner ring remains horizontally supported. The raceway surface was checked on the outer ring of tapered roller bearings, and other separable ball bearings which can roll their body. Because large bearings cannot be rotated manually, it is important to check the appearance of the raceways, cages and walls. The more important the bearing is, the more thorough the inspection must be.

The main observation when inspecting the head of the rivet is that the position is not correct. Welding quality. There is no welding or there is no welding, but the problem is caused by a solid ball card. Bearing testing is a process that requires extra attention. Several other issues need to be addressed.

I would like to share my experience of many years in bearing testing locally. First, the bearing should be inspected in an environment that is bright and has good astigmatism. This will allow the bearing to be observed better and ensure the surface of the bearing does not have any cracks or other abnormalities. The bearing equipment can be displaced by cloud-like wear, scratches and touch pressure. This will lead to poor positioning of the equipment, which results in a flat bearing shape, stress and load concentration and reduced accuracy.

Rust is not only a result of pollutants in the water or working environment, but also leads to poor bearing installation and premature wear. It will eventually lead to serious scrap. Special attention should be given to the water’s moisturizing properties.

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