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How to choose the lubricating oil for the spindle bearing of CNC lathe?
Lubricating oil for spindle bearings of CNC lathes is a common grease for spindle bearings of high-precision lathes and similar machinery and equipment. It plays a key role in ensuring the running precision and performance indicators of the spindle and extending its service life. Next, let's take a look together, how to choose the spindle bearing and bearing oil of CNC lathe? The following four elements must be considered in the selection of CNC lathe spindle bearing oil. 1. Appropriate viscosity and good viscosity-temperature characteristics In order to prevent the temperature of the spindle bearing of the CNC lathe from being too high, thereby causing thermal deformation of the machine tool, affecting the machining accuracy or causing poor lubrication of the bearing, it should be based on the structure and speed of the spindle bearing For example, the lubricant with suitable temperature should be used in the bearing gap and it must have good viscosity-temperature characteristics, so as to avoid the excessive change of viscosity and interference with its lubrication performance due to the large change in the working temperature of the spindle and the natural environment temperature. 2. Good lubricity is to keep the floating oil evenly distributed between the main shaft and the bearing surface, and when the main shaft runs or terminates the motion to cause impact load, the floating oil will not be damaged, and the maintenance of stable lubricating performance plays a role in reducing Friction and frictional heat, reduce the temperature rise of the spindle, and ensure the effect of machining accuracy. 3. Good anti-oxidation When the CNC lathe spindle adopts the circulation lubrication method, it is required that the spindle oil should be used for a long time without deterioration, so it needs to have good anti-oxidation. 4. Excellent anti-rust property Since the refined oil will inevitably seep into the condensed water in the air or machine coolant during the working process of the spindle air intake system, it is necessary for the oil to have excellent anti-rust property. Co., Ltd. was established in 1988. It is a professional manufacturer of CNC lathe spindle bearings. Various models and specifications are produced with inner diameters ranging from 10mm to 300mm.
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