As an important component of bearing manufacturers, bearings must refer to various factors for their selection specifications. The selection of bearings in machine tool applications must take into account the following four factors. 1. Speed ​​ratio and temperature rise With the development of science and technology, the speed ratio of bearings is getting higher and higher, and the range of speed regulation is getting wider and wider. Therefore, the demand for the reliability of bearings in high-speed operation is also becoming higher and higher. Bearing temperature rise is the main factor that defines the bearing speed ratio. In general, proper selection of bearing type, tolerance class, configuration method, backlash (preload) size, lubricating fluid and lubrication method, etc., can improve the rapid performance of the rolling bearing to a certain extent. 2. Service life and bearing capacity For general machine tools, the key to the service life of the spindle components is the use period for maintaining the accuracy of the spindle. Therefore, it is required that the accuracy maintenance characteristics of the bearings meet the requirements of the service life of the spindle components. For super-heavy machine tools or super-powerful drilling machine tools, the bearing capacity of the bearing manufacturer's bearings should be considered first. 3. Stiffness and vibration resistance In order to ensure the production quality of the machine tool, the spindle system must have sufficient stiffness, otherwise there will be a large reflection deviation and even chatter. Vibration resistance tests the ability to resist external force vibration and self-excited vibration. The vibration resistance of the main shaft components lies in the strength and vibration reduction of the main shaft and bearings. The rigidity of the main shaft system can be effectively increased by using the torque rotation bearing. 4. Noise In the fast CNC grinding machine, the noise of the grinding head bearing is the main component of the noise of the whole machine, and low-noise rolling bearings should be used. With 35 years of industry experience in machine tool bearings, it is a professional bearing manufacturer of precision ball bearings. With excellent product development capabilities and strict quality control, we continue to expand our product line and application range. ( http:// )
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