The parameters of a ball screw are commonly expressed in English as follows: 1. Lead: The distance traveled by the nut in one revolution of the screw. 2. Pitch: The distance between two adjacent threads on the screw. 3. Diameter: The nominal diameter of the screw shaft. 4. Axial play: The amount of axial movement allowed between the screw and nut. 5. Preload: The amount of axial force applied to the screw to eliminate backlash. 6. Accuracy grade: The level of precision to which the screw is manufactured. 7. Nut type: The design of the nut, such as flanged or cylindrical. 8. Material: The material used for the screw and nut, such as steel or bronze. 9. Lubrication: The type of lubrication used, such as oil or grease. 10. Mounting method: The method used to mount the screw and nut, such as end mounting or flange mounting.,缺点是成本较高、维护复杂,这种工具适用于加工大直径、长螺纹的工件，如轴、杆等,该公司采用NSK滚珠丝杠作为其产品的核心部件，以确保产品的高精度和稳定性, 3. 精度要求计算：需要根据应用场景确定滚珠丝杠所需的精度等级, 滚珠丝杠升降台主要应用于工业生产线、仓库货物搬运、车间维修等场合，具有升降高度大、运行平稳、操作简单、可靠性高等特点, 3. M：中等精度等级，适用于高精度传动的应用,滚珠丝杠与螺母之间需要有一定的空隙，这就需要根据螺母的螺距和槽宽进行调整,通过旋转滚珠丝杠定位尺的手柄，可以让测量头与轴面接触并测量出轴的位置,滚珠丝杠轴承允许的转速取决于许多因素，例如负载、润滑方式、尺寸和材质等