Knowledge classification - bearing grease

What is the grease? Grease is a thickening agent which is composed of dispersed in the liquid lubricant is a stable solid or semisolid product, which can add to improve some characteristics of grease additives and fillers. Grease at room temperature can be attached to the vertical surface erosion, and can work in the open or sealed friction parts, can not be replaced by other lubricant characteristics. Therefore, in many parts of the automobile and engineering machinery materials used as lubricating grease. Commonly used grease type 1. Calcium base grease both ordinary call the grease of butter. In the most widely used in automobile repair industry grease. The grease is the technology of the 1930 s. In developed countries is already belong to the elimination of the product. Due to the low price is widely used in the automobile repair industry. It is strongly recommended that not to use this kind of product. At least not in their use of the car. 2. Graphite calcium base grease is usually black, this is because in the grease joined a percentage of the flake graphite, with good water resistance and rolling resistance. Especially suitable for used in automobile steel plate after lubrication. Related aspects of the experiment proved that the graphite calcium base grease grease lubrication of auto leaf spring is using common butter lubrication life more than double. Suggest cutting car juyou don't adopt ordinary butter lubrication rear wheel steel. 3. Gm lithium base grease which is widely used for modern automobile industry a grease. Has the long life, good resistance to water effect and lubrication characteristics with good effect. Replace the product is common butter. For the most part can be used for auto lubrication. Its service life is twice the calcium base grease. 4. Extreme pressure lithium complex grease which is a higher than general lithium grease has extreme pressure and anti-wear grease. It is important to note as lubricant grease with brands to suitable for different environment temperature and conditions of use. As a general rule, the larger the number the more sticky. Usually the south throughout the year can use 2 #, the northern winter available 1 #. 3 # is only applicable to tropical heavy-duty vehicles. Strictly speaking, of course, the choice of the grease is affected and restricted by other factors. The correct use of the grease method: 1. Amount of lubrication filling to be appropriate and large amount of fat, can make the friction torque increase, temperature, increase of fat consumption; And fatliquoring quantity too little, cannot obtain reliable and smooth and dry friction. Generally speaking, appropriate amount of fatliquoring for bearing inner 1/3 ~ 1/2 total void volume. But according to situation, sometimes it is should be on the edge of the bearing with grease and cavity lubrication. 2. Pay attention to prevent the mixture of different kinds, grades and the old and new grease to avoid fat container and tool use, otherwise, will have a drop point down on fat, cone into the degree increased and mechanical stability etc. 3. Attaches great importance to the new grease work by Yu Run fat varieties, quality is in constant improvement and change, the old equipment to switch to the new grease, should look after the test, trial rear can officially use; When change the new fat, should first remove waste grease, clean parts clean. When adding grease, waste should be fat extrusion, when fat mouth see new grease. 4. Attaches great importance to the process of filling grease in the management before receiving and filling grease, must strict attention to containers and tools clean, equipment for fat mouth should be wiped clean, protected from mechanical impurity, mixed with dust and sand. 5. Pay attention to the season with fat timely replacement such as equipment environment in winter and Xia Li and change of temperature difference is bigger, if summer of fat in the winter, or on the contrary, the result will be counter-productive. 6. Note plus in grease grease and regularly in time should be used according to specific circumstances, to ensure the reliable lubrication and not cause fat waste. 7. Don't use wooden or paper packaging harden, mixed with water to prevent loss of oil or grease contamination, and should be stored in a cool and dry place.