Test the effect of KOYO bearing grease deterioration on temperature

The grease used in KOYO bearings must have an anti-rust effect, and the anti-rust agent is preferably insoluble in water. The grease should have good adhesion and form an oil film on the surface of the steel. The grease will become soft during machining and cause leakage. In normal operation, grease will be trapped inside the bearing by the bearing housing. If the mechanical stability of the grease is not enough, during the operation, the structure of the soap of the grease will mechanically disintegrate, causing the grease to be destroyed, thereby losing the lubricating effect. If the grease is wrongly selected, all the measures for preventing the bearing are futile. It is important that the viscosity of the base oil at the working temperature provides sufficient lubrication. The viscosity is mainly affected by the temperature, it decreases as the temperature rises, and it rises when the temperature drops. Therefore, it is necessary to know the viscosity of the base oil at the operating temperature. Mechanical manufacturers often specify the use of certain greases, however most standard greases are available in a wide range of applications.

Grease is very critical in the use of KOYO bearings. If a deteriorated grease is used, it will not only function as it should, but it will also damage the bearing.

1 oil flow observation method

Take two measuring cups, one of which is filled with the lubricating oil to be inspected, the other is placed on the table, and the measuring cup filled with lubricating oil is lifted off the table 30-40 cm and tilted to allow the lubricating oil to slowly flow to the empty cup. In the middle, observe the flow, the quality of the lubricating oil flow should be slender, even, continuous, if the oil flow suddenly and slowly, and sometimes there is a large flow, then the lubricant has deteriorated.

2 handcuffs

The lubricant is rubbed repeatedly between the thumb and the index finger. The better lubricant feels lubricated, less wear debris, and no friction. If you feel a large friction between the fingers, it means lubricating oil. There are many impurities inside, can not be reused, should be replaced with new lubricants.

3 illumination method

On a clear day, use a screwdriver to pry the lubricant at a 45-degree angle to the horizontal. Observe the sunlight and observe the oil droplets. Under the light, it can be clearly seen that there is no wear debris in the lubricating oil, which can continue to work. If the grinding debris is too much, the lubricating oil should be replaced.

4 oil drop trace method

Take a clean white filter paper, drop a few drops of oil on the filter paper. After the oil leaks, if there is black powder on the surface, touch the hand with a feeling of resistance, it means that there are many impurities in the lubricant, good lubricant No powder, it is dry and smooth by hand, and it has yellow marks.

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Advantages of using oil lubrication for INA bearings

INA bearings are precision components and their use must be carried out with care. No matter how high-performance bearings are used, if not used properly, the high performance will not be expected. So what is the use of the bearing? Pay attention to the following when using bearings:

1. Keep the bearings and their surroundings clean.

Even small dust that is invisible to the eyes can have a bad effect on the bearings. So keep the area clean so that the dust does not intrude into the INA bearing.

2. Carefully use the bearing to give the bearing a strong impact during use, which will cause scratches and indentations, which may be the cause of the accident. In severe cases, cracks and breaks occur, so care must be taken.

3, use the appropriate operating tools

Avoid using existing tools and use the right tools.

4, pay attention to the rust of the INA bearing

When operating the bearing, the sweat on the hand can cause rust. Be careful to use a clean hand, it is best to wear gloves as much as possible.

It is very important to understand how the use of the bearing will do more with less.

When the mechanical parts near the bearing have been lubricated with oil or need to be dissipated by lubricating oil, the bearings should be lubricated with oil. There may be heat dissipation requirements when the bearing is under heavy load or high speed, or when external heat is introduced.

Micro-lubrication methods, such as drip lubrication, oil mist lubrication or oil and gas lubrication, ensure that the oil loss and bearing friction are small.

When air is used as the carrier, the oil can be supplied directly and the gas flow helps to seal.

INA Bearings are extremely fast and require good cooling of the fruit, allowing a large amount of lubricant to be sprayed directly onto all contact surfaces.

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