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In order to better carry out the best condition of the bearing; the selection of SKF bearing smooth grease is directly related to the stability of the equipment. The selection of bearing smooth grease must be considered from the following aspects: /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
1. Anti-rust function Anti-rust agent is the most insoluble in water. Grease should have excellent adhesion; the grease used in the bearing must have anti-rust effect. It can form an oil film on the steel surface.
2. Mechanical safety leads to leakage. During normal operation, the grease will become soft during machining. The grease will be smashed into the bearing by the bearing seat. If the mechanical stability of the grease is not good; during the operation, the layout of the soap will occur. Sexual disintegration; the formation of oil is damaged; then the smoothing effect is lost.
3. Oil seal SKF bearing operation; oil seal is a necessary barrier to protect bearings and smoothing agents from external pollution. No matter whether debris or moisture can enter the bearing; to prevent damage to it. Correct equipment protection is the most important bearing An important factor in long service life. Together; must pay attention to the sanitary degree of the bearing, the correctness of the bearing selection and the selection of appropriate equipment and protection. Others; the bearing must be protected from contamination by pollutants and moisture; and ensure that it is correct The equipment and the smoothness of the bearing, the description of the bearing arrangement, the condition of the oil seal, the type of smoothing agent and the smooth cycle; even the special protection plays the same and important figure.
4. If the mixed grease is mixed with two kinds of incompatible greases, never mix the incompatible greases. Generally, the consistency will become soft; eventually, the bearings will be damaged due to the simple loss of grease. If you do not know the original bearings used. Which kind of smooth grease; you must first completely remove the old grease in the bearing table; in order to add new grease.
5. Classification of fats and oils The consistency and smoothness of oils and fats that are operated at a certain temperature affected by the operating temperature must be selected to have the correct consistency and outstanding smoothness at the same temperature. Grease is a different operating temperature scale. The difference between the production can be roughly divided into low temperature, medium temperature and high temperature grease. Together; the first difference is based on temperature and working conditions: oil can be classified according to its allowable operating temperature. One type of grease is called kneading or kneading resistance. And add molybdenum disulfide; together; an increase agent is added to strengthen the strength of the smooth oil film.
6. The selection of a grease is an important factor in the selection of a grease; if it is a fault to select a grease, then all measures to prevent the bearing are also in vain. The viscosity of the base oil at the operating temperature is able to supply a smoothing effect that is important. The viscosity is primarily affected by temperature; When the temperature rises, it rises. Therefore, it is necessary to know the viscosity of the base oil at the operating temperature. Mechanical manufacturers generally specify the use of certain oils; however, most standard smooth greases are suitable for a wide range.
Before the inspection, the external appearance of the sanitary machine must be taken; then the parts around the SKF bearing are disassembled. The oil seal is a very weak part; please take care to disassemble it; do not apply excessive force; then carefully check the oil seal and its surrounding parts; When it shows bad performance; it must be replaced; a bad oil seal will cause damage to the bearing and severe equipment stop.
Look at the smoothing agent; apply a little smoothing agent to the conflict between the two fingers; if there is a contaminant, feel it; or apply a thin layer of smoothing agent on the back of the hand; then seal it.
Replace the smoothing agent; the oil-smooth bearing is after the old oil is drained; then refill the fresh oil and let the machine spin for a few minutes at low speed. The oil can be used to collect the residual contaminants; then the oil is removed; the oil The best filter before use.
The grease smoother bearing used in the replacement of grease should prevent the cotton material from joining the joint to any part of the bearing; because these residual fibers can be wedged between the rolling elements and form damage; especially It is the use of small bearings that need more attention.
Cover the exposed bearings; when viewing SKF bearings; do not expose the bearings to contaminants or moisture. If the operation is stopped; cover the machine with oil-paper plastic sheets or similar materials. If you do not have to disassemble, you can perform the inspection. Remove unshielded bearings under the scene; remove with a petroleum solvent to apply the brush; then dry with a lint-free cloth or blow dry with compressed air (do not let the bearing assembly start to rotate).
It is not necessary to remove the bearing with a sealing cover or dustproof, only scrub the external appearance. If the bearing is damaged, it needs to be replaced. Replace the SKF bearing in the timed period of protection and is better than the damage due to the damage of the array. The loss of the sudden stop is more economical.
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SKF bearing smooth grease selection considerations
Source: China Bearing Network Time: 2013-07-19