CNC lathe spindle bearing lubricating oil is a common lubricating grease for high-precision lathes and similar machinery and equipment spindle bearings. It plays a key role in ensuring the running precision and performance indicators of the spindle and increasing its service life. Next, let's take a look at how to choose CNC lathe spindle bearings and bearing oil? The selection of CNC lathe spindle bearing oil must consider the following four factors. 1. Appropriate viscosity and good viscosity-temperature characteristics are to prevent the temperature of the spindle bearing of the CNC lathe from being too high, thereby causing thermal deformation of the machine tool, jeopardizing the machining accuracy or making the bearing poorly lubricated. Use suitable temperature lubricants for ratio and bearing clearance, and stipulate that it has excellent viscosity-temperature characteristics, so as to avoid excessive changes in viscosity and interference with its lubricating performance due to the large changes in the temperature of the spindle during operation and the temperature in the natural environment. 2. Good lubricity is to keep evenly distributed oil slick between the main shaft and the bearing surface, and the oil slick will not be destroyed when the main shaft runs or stops motion causing impact load, and maintains stable lubrication performance. Friction and friction heat, reduce the heating of the spindle, and ensure the effect of machining accuracy. 3. Excellent anti-oxidation When selecting the lubrication method of the circulatory system, the spindle bearing oil of the CNC lathe is required to be used for a long time without being mildewed, so it needs to have excellent anti-oxidation. 4. Excellent anti-rust property Because the condensed water or machine tool refrigerant that will penetrate into the air is difficult to avoid during the operation of the main shaft air intake system, the oil needs to have excellent anti-rust properties. Co., Ltd., established in 1988, is a professional manufacturer of CNC lathe spindle bearings. Production of various models and specifications with inner diameters ranging from 10mm to 300mm.