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Why does linear guide need lubrication?When the linear guide rail is used, lubricating oil needs to be added to maintain the high efficiency of the equipment operation, reduce the loss caused by friction, reduce the equipment stop frequency caused by maintenance, and improve the production efficiency. Lubrication requirements for linear guide (1) Make the guide rail work as close as possible to the state of liquid friction to reduce friction resistance, reduce driving power and improve efficiency. (2) Reduce the wear of guide rail and prevent the corrosion of guide rail. The flowing lubricating oil also plays a flushing role. (3) Avoid crawling at low speed and heavy load, and reduce vibration. (4) Reduce the friction heat and thermal deformation at high speed. 2. Selection of lubricating oil for linear guide According to experience and data, the following factors are mainly considered when selecting linear guide rail lubricating oil. (1) It is not only used as a lubricating medium, but also as a lubricating oil for noise elimination. According to the needs of different types of linear guide rail, the guide rail lubricating oil can be used as hydraulic medium at the same time, which not only meets the requirements of guide rail, but also meets the requirements of hydraulic system. (2) Choose the viscosity and adhesion of the grease according to the sliding speed and average pressure. 3. Requirements for lubricating grease of ball screw guide rail (1) Low friction coefficient, small torque, improve the efficiency of screw rod, and extend the service life; (2) Excellent high-speed lubricity and bearing capacity, compatible with most plastics; (3) Good anti fretting wear protection can reduce the mechanical noise caused by micro vibration of sliding friction and maintain long-term noise reduction effect. 4. Advantages and selection of grease on guide rail The grease with good adhesion can cover the solid lubricant on the friction surface of the guide rail and form the adhesive solid lubricating film to reduce friction and wear. There are many kinds of solid lubricants, which can be divided into metal, metal compound, inorganic and organic according to the basic raw materials. Adding solid lubricant powder to lubricating grease can enhance or improve the bearing capacity, aging performance and high and low temperature performance of lubricating grease. |