7. 螺纹规格：FL滚珠丝杠的螺纹规格是指丝杠轴上的螺纹尺寸和类型,sjb50滚珠丝杠升降机广泛应用于各种场合，例如厂房、仓库、舞台、停车场等地方的货物升降、人员升降等, D级：精度稍次于C级，适用于要求较低的机床、一般机械等场合,可以使用润滑油或润滑脂进行润滑, 2. 精度不同：滚珠螺杆的精度较高，能够达到微米级别的精度，而丝杠精度一般在几十微米到百微米之间, Abstract: This design aims to design a precision position control system based on ball screw pair. Through the research on the principle, characteristics and application of ball screw pair, a scheme of precision position control system based on ball screw pair is designed, implemented and tested. This design includes system hardware design, system software design and system testing. The system hardware design includes the selection of ball screw pair, motor selection and control circuit design; The system software design includes the programming of control algorithm and the design of control interface; The system testing includes the stability test and accuracy test of the system. Keywords: ball screw pair; precision position control system; control algorithm; control interface; system testing.,例如，SFU型号适用于高精度传动和定位控制系统，DFU型号适用于高速传动系统，SFE型号适用于轻负载传动系统,厦门固定座滚珠丝杠是一种传动装置，由滚珠丝杠、固定座、轴承和电机等组成,这种连接方式更加牢固，可靠性高，适用于负载较大的场合, 4. 不需要加润滑油，具有自润滑功能