Rust prevention performance
The grease used in the 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.
Mechanical stability
Grease becomes soft during machining and causes leakage. When there is a vibration application example, grease will be trapped inside the bearing by the 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.
Oil seal
Oil seals are necessary to protect bearings and lubricants from external contamination, and no matter whether debris or moisture can penetrate into the bearings to prevent damage. Proper installation and maintenance is an important factor in the longest service life of the bearing. At the same time, attention must be paid to the cleanliness of the bearings, the correctness of the choice of bearings and the selection of appropriate installation and maintenance tools. Bearings must be protected from contaminants and moisture and must be properly installed and lubricated. The design of the bearing arrangement, the condition of the oil seal, the type of lubricant and the lubrication cycle, as well as the special maintenance play an important role.
Mixed grease
Never mix incompatible greases. If two incompatible greases are mixed, the consistency will usually soften and eventually damage may occur due to the loss of grease. If you don't know which type of grease the bearing originally used, you should first remove the old grease inside and outside the bearing to add grease.
Classification of oils and fats
According to temperature and working conditions: grease can be classified according to their allowable working temperature. The consistency and lubricating ability of grease are affected by working temperature. Bearings operating at a certain temperature must choose the correct consistency and good at the same temperature. Lubricating grease. Grease is manufactured in different operating temperature ranges and can be classified into low temperature (LT), medium temperature (MT) and high temperature (HT) greases. At the same time, there is a type of grease called EP (extrusion resistant) or EM (resistant to extrusion and added molybdenum disulfide), with additives to enhance the strength of the lubricant film.
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