Simple identification method of rolling bearing grease

Second, the simple method to identify 1 of the grease. Soap base in the identification of the daub on the copper grease, and then put a hot water, if the grease and water, water does not change color, that is the calcium base grease, lithium base grease or barium base fat; If the grease quickly dissolve in water, into the milk, translucent milky solution is sodium based grease; Grease, although can dissolve in water, dissolving speed is very slow, that is sodium calcium base grease. 2. Fiber destructive to identify the network structure of copper coated with grease of the test tube with water and constantly rotating, without oil, shows that the organizational structure of the grease is normal, if there is oil bead float on the surface of the water, that the grease of fiber network structure has been damaged, lost adhesion, cannot continue to use. The main reason is improper safekeeping, subjected to vibration and long storage. 3. Inspection of mechanical impurities, take a small amount of grease to twist with finger pressure by judgment without impurities; Color the grease on the transparent glass, coating thickness is about 0. 5 m you can observe presence of mechanical impurities in the light. The third quarter, the selection principle of the grease injection and the selection principle of the grease, mainly according to the bearing work environment, work temperature load conditions, etc. Mainly refers to the working environment of minimum and maximum temperature, air humidity, whether working environment corrosion gas or too much dust, etc. For example, in the cold region when using outdoor, should choose the lithium base grease at low temperature; In larger humidity and moisture more occasions should choose calcium base grease; In a dry, less water, preferential selection sodium base grease of soluble in water. 2. Working temperature one is to use the lowest temperature of the environment, the second stage is the highest temperature in the operation of the possible. Working at high temperature, high temperature lubrication should choose high drop point. Actually the highest working temperature should be lower than 10 ~ 20 ℃ drop point (grease Synthetic lubricant should be 20 - 30℃) 。 3. Load condition of heavy load, should choose small grease cone into the degrees. Work under high pressure, in addition to the required degree of cone into the small, also requires a high oil film strength and compression performance. Second, the grease injection method and injection ( A) On the tools of the rolling bearing oil tools manual greasing and pressure on the two kinds of type commonly known as oil gun; Larger production, use and repair units may be used with special metering device on the machine ( Tank or barrel) , as shown in figure 4 2. In the absence of the special equipment, usable and clean without burr of the board or COINS, etc. Steel tools with sharp edges should be banned. ( 2) On the quantity of 1. Grease injection rate influence on bearing used for sealed bearing, at the time of production has been filling the appropriate grease; For open bearing, although set sealing device to prevent the leakage of the grease, but will still be in use for a small amount of leakage and reduce gradually, such as need to continually added. Practice has proved that into the how much of the grease in the bearing on the run will produce a.