In order to better play the best condition of the bearing, the choice of SKF bearing grease is directly related to the stable operation of the equipment. The choice of bearing grease must be considered from the following aspects:
1. Anti-rust performance
The rust inhibitor is preferably insoluble in water. Grease should have good adhesion, and the grease used in the bearing must have anti-rust effect. And can form a layer of oil film on the steel surface.
2. Mechanical stability
Causes a leak. In normal operation, the grease will become soft during machining. Grease will be trapped inside the bearing by the bearing housing. 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. Oil seal
Oil seals are a necessary barrier to maintain bearings and lubricants from external contamination during SKF bearing operation. No matter whether debris or moisture can penetrate into the 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.
4. Mixed grease
If two incompatible greases are mixed, never mix incompatible greases. Usually, the consistency will become soft, and in the end, the bearing may be damaged due to the easy loss of grease. If you don't know which grease the bearing originally used, you must completely remove the old grease inside and outside the bearing before adding new grease.
5. Classification of oils and fats
SKF bearings that operate at a certain temperature affected by the operating temperature must be selected to have the correct consistency and good lubrication at the same temperature. Grease is manufactured in a wide range of operating temperatures and can be broadly classified into low temperature, medium temperature and high temperature greases. At the same time, it is mainly distinguished according to temperature and working conditions: grease can be classified according to its allowable operating temperature. One type of grease is called extrusion-resistant or extrusion-resistant and adds molybdenum disulfide, and an additive is added to enhance the strength of the lubricant film.
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