通过控制主轴的旋转速度和方向，就可以实现Z轴的升降, KSS滚珠丝杠的应用范围广泛，包括CNC机床、自动化生产线、精密仪器等, 关键词：低速滚珠丝杠；直线运动；摩擦力；滚动阻力；惯性力；数值模拟 Abstract: This paper mainly studies the characteristics of low-speed ball screw linear motion and its influencing factors. Firstly, the basic structure and working principle of ball screw are introduced. Then, the factors involved in low-speed ball screw linear motion, such as friction force, rolling resistance, inertia force, etc., are analyzed, and the influence of these factors on ball screw linear motion is studied by using numerical simulation method. The research results show that friction force has the greatest influence on ball screw linear motion, followed by rolling resistance and inertia force. In order to reduce these influences, appropriate materials, lubrication methods and processing techniques should be used in the design and manufacturing process to improve the motion accuracy and service life of ball screw. Keywords: low-speed ball screw; linear motion; friction force; rolling resistance; inertia force; numerical simulation., 4. 转速：需要根据所需的转速来选择丝杠的导程和螺纹数,我无法显示图片，但是滚珠丝杠的参数组成如下： 1. 螺距：指螺旋线的间距，通常以毫米为单位表示,根据制造商的建议，定期更换润滑剂,常见的长度有20mm、30mm、40mm等, 4. SFI系列：SFI1204、SFI1605、SFI2005、SFI2505、SFI3205等, 4. 寿命长：滚珠丝杠采用优质材料和精密加工工艺，具有较长的使用寿命, 2. 主轴转速高，可满足各种加工要求，同时具有较低的噪音和振动