In order to maintain the normal use of the main shaft and the main shaft bearing, in addition to the performance of the main shaft and the bearing itself, one point that is often overlooked by the public is to choose the appropriate special bearing lubricant for the main shaft. The special bearing lubricant for the main shaft is also called bearing oil. Appropriate spindle special bearing lubricant plays a very important role in maintaining the accuracy, life and other aspects of the spindle. The key factors that affect the choice of lubricating oil for the spindle of a machine tool are the structure of the spindle bearing, the speed and the clearance of the spindle bearing. The special lubricant for the spindle with a suitable temperature and good viscosity will allow the spindle to maintain high-speed and high-temperature operation. Very good lubricity. The following points should be considered in the selection of special bearing oil for the spindle: 1. The viscosity of the oil should be good, and the temperature should match the spindle; during the high-speed operation of the spindle, the temperature of the spindle will rise, or the ambient temperature in the workshop will change greatly At the same time, this requires that the special lubricant for the spindle must have good viscosity and viscosity temperature, and will not affect the degree of lubrication with the increase of the spindle temperature or the change of the surrounding temperature, otherwise the temperature of the machine tool spindle bearing will rise. As a result, the machine tool will be damaged, which will affect the machining accuracy of the machine tool. 2. It must have good oxidation resistance; the special bearing lubricating oil for the main shaft has a long service life, and it must be guaranteed not to deteriorate due to contact with oxygen during long-term use, which requires the lubricating oil to have good oxidation resistance . 3. There must be good lubricity; during the high-speed operation of the machine tool spindle and bearing, the impact will cause the oil film on the contact surface to be damaged, so the special bearing for the spindle is required to have good lubricity, which can maintain the friction between the spindle and the bearing. The force is reduced and the temperature generated by friction is reduced. 4. There must be good anti-rust ability; when the spindle is running for a long time, it will be mixed with moisture in the air and machine tool coolant. These moisture and coolant will cause the spindle or bearing to rust, so the special bearing lubricant for the spindle Need to have a certain anti-rust ability. Focusing on the research and development and production of special bearings for spindles and angular contact bearings for 37 years, we strive for excellence in bearing production and maintenance, never forgetting our original intention, and always stick to building an excellent domestic bearing brand! Only when the torque is accurate can the rotation be stable!
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