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Lubricating grease for outer spherical bearing considering oil viscosity

The selection of lubricating grease of the outer spherical bearing is standard, and the influence on the bearing is very large. If the selection of oils and fats deviation, not only will not play the role of the development of the lubrication effect, but also to the operation of the bearing will bring a certain block effect. The type and size of the bearing, the working temperature, the working load, the speed range, the work condition and so on, all have certain influence to the selection of grease.

The lubrication and maintenance of outer spherical surface bearing should be started from the actual working environment of the bearing. Grease is made from different working temperature range can be roughly divided into low temperature, medium temperature and high temperature grease. According to the extrusion condition, the lubricating grease is divided into the type of milk extrusion and the type of extrusion. According to the operation of the bearing equipment's actual demand conditions, selection of suitable lubricating grease, such as ball bearings, such bearing the high rotating speed, operating temperature relative than other categories, under a small load. Therefore, multi selection of high temperature lubricating oil, cylindrical or tapered roller bearings, due to heavy load, high friction coefficient, large vibration and other actual conditions of the environment. Therefore, in the selection of lubricants should be considered first is the high temperature grease, and has the performance of the extrusion, can be in a larger vibration, to a certain extent, the shock absorption effect.

In the process of selecting the lubricating grease of the outer spherical bearing, the oil viscosity of the outer spherical surface bearing should be considered. Base oil viscosity is to ensure that the bearing in normal operation of the necessary lubrication viscosity of the fundamental, but also marks the good or bad lubrication oil. Base oil viscosity is mainly affected by the temperature, with the temperature rise and fall, when the temperature drop is rising. Therefore, it is necessary to know the base oil viscosity at the operating temperature to ensure proper lubrication of the bearing.


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