Popular science for you: types and characteristics of lathe spindle bearings-

As we all know, bearings can be used in many industries. As the name suggests, the bearings that are generally used in lathes are collectively referred to as lathe spindle bearings. So what are the specific types of lathe spindle bearings? The editor is generally summarized as: angular contact ball bearings, cylindrical roller bearings, deep groove ball bearings and tapered roller bearings. The characteristics of bearings used in lathes will be explained one by one from the characteristics of each classification: 1. Deep groove ball bearings are generally only used to carry the axial load in the main shaft of the lathe, because the backlash cannot be adjusted. , so it is often used in situations where the precision standard is not high and preloading is not required, such as the spindle of a drilling machine. 2. Angular contact ball bearings This type of bearing can bear both axial and radial loads in machine tool applications, because it is easy to cause internal axial forces when bearing axial loads, so it is solved for installation applications. This type of bearing has high rotational precision and limit speed ratio, small friction and low temperature rise, and is the most widely used type of lathe spindle bearing. 3. Two-way angular contact ball bearing This type of bearing can bear double radial load in the machine tool, has excellent rigidity, low temperature rise during normal lubrication, high speed ratio, and easy assembly and disassembly, as a new structure At this stage, it is mostly used on the spindle of CNC grinding machines, CNC lathes, milling machines, CNC lathes, machine tools, planers, etc. In applications, it is often combined with self-aligning bearings, cylindrical roller bearings, and is also suitable for lathe spindle bearings. type. 4. Cylindrical roller bearing This kind of bearing can bear the axial load and can be used in the occasions where the rotation speed is relatively high in the spindle bearing of the lathe. The multi-row roller bearings in the bearing are arranged in a cross-type method, and the undulation frequency during rotation is doubled compared with the row bearing, and the vibration amplitude is reduced by 70%. 5. Tapered roller bearings This type of bearing can additionally bear axial and radial loads, and its limit speed is generally lower than that of cylindrical roller bearings of the same size. Hollow tapered roller bearings can be cooled with oil to enhance the speed ratio. However, the production and manufacturing technology of such bearings is complicated, and the requirements for the lubrication technology of CNC lathes are also high. Generally, they are only used on the spindle of horizontal lathes with special requirements. With 35 years of experience in the production of machine tool spindle bearings, the production process is scientific and scientific, and can support customization!