Bearings are a key component of bearing manufacturers, and their selection specifications must refer to a variety of factors. 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 trend of science and technology, the bearing speed ratio is getting higher and higher, and the speed regulation scope is getting bigger and bigger. Therefore, the demand for the reliability of bearing high-speed operation is also becoming higher and higher. Bearing heating is the main factor that defines the bearing speed ratio. Under normal circumstances, the proper selection of bearing types, tolerance levels, installation methods, backlash (preload) dimensions, lubricants and lubrication methods can improve the rapidity of reversing bearings to a certain level. 2. Service life and bearing capacity For general machine tools, the key to the service life of the spindle components is the period of use for maintaining the accuracy of the spindle. Therefore, the accuracy maintenance characteristics of the bearings are required to meet the requirements of the service life of the spindle components. For super-heavy machine tools or super-power drilling machines, the bearing capacity of the bearing manufacturer's bearing should be considered first. 3. Bending rigidity and vibration resistance In order to ensure the production quality of the machine tool, it is necessary to make the spindle system software have sufficient rigidity, otherwise there will be a large re-image deviation and even chatter. Vibration resistance tests the ability to resist external vibration and self-excited vibration. The vibration resistance of the main shaft components lies in the strength and damping of the main shaft and bearings. The selection of torque flip bearings can reasonably improve the bending stiffness of the spindle system software. 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 a low-noise rolling bearing 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 product lines and application scope.