Note on the use of grease in IKO plain bearings

Lubricating this process is indispensable in the use of flat bearings. However, there are many ways to lubricate. Various lubrication methods should pay attention to different problems during the lubrication process, which leads to the user's Confused, here I will introduce you to the precautions for IKO bearing oil lubrication and grease.
1, grease lubrication
    Relubrication of IKO bearings is best carried out during planned equipment downtime and is periodically replenished, while removing old grease or extruding old grease through the drain. Wipe the grease fittings clean before adding fresh grease. If the flat bearing housing does not have a grease fitting, the bearing housing cover or end cap should be opened to remove the old grease and, after cleaning, replenish the same type of fresh grease.
2, lubricating oil lubrication
    Regularly check the oil level and oil quality of the lubricating oil. Under normal circumstances, the normal oil level should be within the range of 1/3-2/3 of the equipment oil level window or mark. The oil filling method is oil cup, the oil level shown only represents the oil replenishing capacity, and the oil level of IKO bearing housing is to meet the operation requirements. The oil level in the oil cup is less than 1/4 of its total volume.
    Check and replenish the oil method, take a small amount of lubricating oil as a sample and compare it with fresh oil. The competent unit can consider the oil quality test to ensure the oil quality is qualified. If the sample looks cloudy, it may be the result of mixing with water, which is commonly referred to as oil emulsification. At this point, the lubricant should be replaced.
If the sample is darkened or thickened, it may indicate that the lubricant has begun to carbonize and the old lubricant should be completely replaced. If possible, flush the oil line with fresh oil. When changing the lubricating oil, make sure that the new and old models of the replaced oil are the same and supplement the required oil level.
     The grease used in the flat bearing must have an anti-rust effect, and the anti-rust agent is preferably insoluble in water. Grease should have good adhesion to form an oil film on the surface of the steel, even if the grease is filled with water. Grease becomes soft during machining and causes leakage. When there is a vibration application example, grease will be trapped inside the bearing by the IKO bearing housing. If the mechanical stability of the grease is insufficient, the grease will be continuously thrown out of the bearing, which will cause mechanical collapse of the soap structure and destruction of the grease.

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IKO machine spindle bearings need to pay attention to the problem of using grease

In order to better play the best situation, the choice of IKO bearing is directly related to the stable operation of the equipment. The choice of machine tool spindle bearing grease must be considered from the following aspects:
1. The rust inhibitor is preferably insoluble in water. Grease should have good adhesion, and the grease used in the spindle bearing of the machine tool must have anti-rust effect. And can form a layer of oil film on the steel surface.
2. Lead to leakage. In normal operation, the grease will become soft during machining. The grease will be removed from the IKO bearing. If the mechanical stability of the grease is insufficient, 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.
3. During the operation of the bearing, the oil seal is a necessary barrier to maintain the machine shaft bearings and lubricants from external contamination. No matter whether debris or moisture can penetrate into the IKO bearing to prevent damage. Proper device maintenance is an important factor in maximizing the service life of bearings. At the same time, it is necessary to pay attention to the cleanliness of the bearing, the correctness of the bearing selection and the selection of appropriate equipment and maintenance tools. In addition, the bearings must be protected from contaminants and moisture and ensure proper installation and lubrication. Therefore, the design of the bearing arrangement, the condition of the oil seal, the type of lubricant and the lubrication cycle, and even the special support play the same and important role.
Of course, if the operating speed of the imported bearings is very low and it is necessary to work in a polluted and humid environment, it is best to fill the IKO housing with grease.
Especially in applications where the vertical axis or axis is tilted at an angle. The grease also has a sealing function to prevent the influence of contaminants, moisture or moisture on the bearing. However, if the grease is excessive, it will cause the working temperature of the spindle of the machine tool to rise, especially in high-speed applications. In most cases, the bearing can be completely filled with grease only at the beginning, while only a proper amount of grease is filled in the housing and there is some free space. Before the full operating speed is reached, the excess grease must be drained out of the IKO bearing during the run-in phase, leaving an appropriate amount of grease in the bearing. When the operating temperature drops significantly, it means that the grease has run into the bearing and is evenly distributed in the bearing arrangement.

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