In addition to good anti-friction and anti-wear properties, the ten-byte lubrication of automotive transmission shafts should have good mechanical stability, high temperature (high drop point), anti-corrosion, water resistance and oxidation stability. Characteristics such as sex.
The high temperature and water resistance of the gear oil cannot be achieved. In addition to calcium-based greases (hereinafter referred to as calcium-based greases), there are various types of greases such as lithium-based greases (hereinafter referred to as lithium-based greases), aluminum-based greases, and sodium-based greases. In fact, the lubrication of the automotive transmission system has always used the No. 2 or No. 3 lithium base grease, because the lithium base grease has a higher dropping point than the calcium base grease (lithium grease is 170 ° C -190 ° C, calcium base grease) It is from 90 ° C to 100 ° C) and has good thermal stability.
The technical requirements for disassembling the cross shaft are high, and it is generally required to be completed by a professional repairer at the auto repair shop. The lubrication operation of the transmission shaft cross shaft is a routine maintenance project. It is usually maintained once every 2000km. If it is repaired to the repair shop every time, this will undoubtedly increase the economic burden of the owner; if each vehicle is equipped with a dedicated Hydraulic filling equipment is also unrealistic. Lubricated with grease, just a normal grease gun, the driver can complete, saving time and economy.
However, some drivers do not operate correctly, which may cause grease to enter the bearing. The correct method of operation is: press the grease gun outlet on the grease fitting, and continuously operate the grease gun so that the grease enters the inner oil passage of the cross shaft through the grease nozzle under pressure, and then reaches the four journals of the cross shaft. The end face is filled with the needle bearings, and the grease and impurities remaining in the needle bearing are extruded from the oil seal. After all the greases and impurities that have deteriorated in each bearing are extruded (see that the fresh grease is extruded), the operation is completed. If the grease cannot be pressed into the bearing during operation, the grease fitting should be replaced or the cross shaft cleaning oil passage should be removed and refilled to ensure safe driving.
In addition, with the continuous development of the automotive industry, molybdenum disulfide grease has been widely used in the automotive industry. The so-called molybdenum disulfide grease is made by adding a small amount of colloidal aluminum disulfide to a lithium base grease or a composite calcium base grease. Molybdenum disulfide is a flaky crystal, and its sulfur atom has a strong affinity for metal, so that it is easy to form a strong lubricating oil film on the friction surface.
Neway Rubber Products Co., Ltd. , http://www.lxrubbers.com