需要注意的是，预拉伸力的大小应根据具体的滚珠丝杠副型号和工作负载来确定，过大会影响传动效果，过小则无法达到预期效果,滚珠丝杠具有高精度、高刚度、高效率等优点，广泛应用于数控机床、自动化设备、机器人等领域, 2. 固定丝杠：将滚珠丝杠固定在工作台上，以确保它不会移动, 3. 在轴承中加入足够的润滑油脂，并定期更换,它由螺纹杆和滚珠组成，通过滚珠在滚道内的滚动来实现高效的传动, 3. 联系当地的机械设备厂商或经销商，咨询订购事宜,这种滚珠丝杠具有传动效率高、精度高、速度快、噪音小、寿命长等优点，被广泛应用于机床、自动化设备、机械手臂等领域, 7. 安装完成后，进行试运转，确保机床的正常运转, 关键词：低速滚珠丝杠；直线运动；旋转不稳定性；噪声；摩擦；优化设计 Abstract: This paper studies the characteristics and optimization design methods of low-speed ball screw linear motion. In view of the possible problems of rotation instability, noise and friction of ball screws during low-speed linear motion, some solutions and optimization methods are proposed. Firstly, the working principle and structural characteristics of ball screw are introduced, and its motion characteristics and advantages and disadvantages are analyzed. Then, the possible problems of rotation instability, noise and friction of ball screw during low-speed linear motion are studied, and corresponding solutions and optimization methods are proposed. Finally, through numerical simulation and experimental verification, the effectiveness and feasibility of the proposed solutions and optimization methods are demonstrated. Keywords: low-speed ball screw; linear motion; rotation instability; noise; friction; optimization design.,同时，润滑剂还可以降低噪音和提高精度