Machine tool bearings are mainly used to support spindles, transmission systems and general axial rotation parts. Its applications include the following aspects:
1. Spindle bearing: As the basic accessory of the machine tool, the performance of the spindle bearing directly affects the machine tool's speed, rotation accuracy, rigidity, anti-chatter vibration cutting performance, noise, temperature rise and thermal deformation, etc., which in turn affects the accuracy of the machined parts. , surface quality, etc. High-performance machine tools must be equipped with high-performance bearings. Commonly used spindle bearing types include deep groove ball bearings, angular contact ball bearings, cylindrical roller bearings, bidirectional thrust angular contact ball bearings, tapered roller bearings and thrust bearings, etc.
2. Ball screw bearings: Ball screw bearings can convert rotational motion into axial linear motion and convert torque into axial and transverse forces, with high precision and reversibility. It is a relatively sensitive transmission element, so it is necessary to choose precision bearings with high rigidity, high rotation accuracy and low friction.
3. Drive shaft bearings: For ordinary drive shafts to achieve inter-shaft transmission between two or more axles with different axes, they need to face constant changes. The requirements and selection are the same as those of ordinary mechanical transmission bearings. They need to meet the requirements of strength and service life, and the speed cannot exceed the prescribed speed limit of precision bearings.
In short, machine tool bearings are widely used, and it is necessary to choose the bearing type and brand suitable for specific application scenarios to ensure the stability and accuracy of the machine tool.