如果需要更高的多重，可以选择更大直径、更高螺距、更多滚珠数量的滚珠丝杠, 3. 可以参考滚珠丝杠的实物或图纸，以确保画出的图形符合实际要求, 关键词：机床；滚珠丝杠；选型；性能指标；应用案例 Abstract This paper studies the selection of heavy-duty ball screw for machine tools. Through the analysis of the structure, working principle, selection parameters and other aspects of ball screw, the factors to be considered in selection are proposed, and the practical calculation and analysis are carried out with specific application cases. Firstly, the basic structure and working principle of ball screw are introduced, and its advantages and disadvantages are analyzed, as well as the comparison with other types of screw. Then, according to the performance indicators and selection parameters of ball screw, the factors to be considered in selection are proposed, including load, speed, accuracy, environmental conditions, etc. Next, through the practical calculation and analysis of the selection of ball screw for the spindle of a CNC lathe, the feasibility and accuracy of the selection are verified. Finally, the application prospect and development trend of ball screw are discussed. Keywords: machine tool; ball screw; selection; performance indicators; application case, 5. 润滑：对滚珠丝杠副进行润滑处理，以降低摩擦阻力，提高使用寿命,支撑座通过底座固定在机器上，轴承支撑滚珠丝杠，锁紧螺钉用于固定滚珠丝杠和支撑座,滚珠丝杠副十字滑台是一种精密机械部件，通常用于精密机械设备的移动部件上，具有高精度和高可靠性的特点, 5. 检查滚珠丝杠的固定部分是否牢固,滚珠丝杠换向器广泛应用于机床、自动化设备、航空航天等领域, 4. 拆下密封圈后，可以清洗密封圈和密封槽，确保没有异物或污垢, 总之，黑龙江NSK滚珠丝杠产品具有广泛的应用领域和良好的性能表现，是机床和自动化设备制造商的首选之一