6.将新的滚珠丝杠放回轴承中，并用螺母固定, 4. 加油润滑：在更换完损坏部件后，需要对滚珠丝杠进行加油润滑，以保证其正常运转, 2. 导程：从1mm到100mm, 6. 支座方式：固定支座、浮动支座、支座端面等, 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.,如果问题仍然存在，则需要进一步检查和修理,使用钢丝刷或气嘴清洁, 3. 高刚性：滚珠丝杠的结构设计使其具有很高的刚性，能够承受较大的轴向和径向载荷, 2.滚珠丝杠的密封不良，导致灰尘和异物进入，损坏了滚珠丝杠的表面，增加了噪音,此外，单端固定还可以降低滚珠丝杠的成本，提高生产效率