8. 额定寿命：通常在5000小时以上, 4. 根据滚珠丝杠的材料和制造工艺计算摩擦系数和效率, 总之，陕西NSK滚珠丝杠作为一种高精度、高速度、高刚性的机械传动元件，在各个行业都有广泛的应用,您可以查看滚珠丝杠的规格书或者咨询制造商来确定所需的钢珠大小, 3. 清洁滚珠丝杠的表面以确保新滚珠的正常安装,公司拥有一支技术精湛、经验丰富的研发团队，能够为客户提供满足不同需求的产品和解决方案, 2. 选择“插入”->“曲线”->“螺旋”，在图形窗口中画出一个螺旋线,湖州是中国滚珠丝杠生产的重要基地之一，有多家知名的国产滚珠丝杠企业, 关键词：滚珠丝杠；结构设计；螺纹剖面；滚珠尺寸；导向结构；密封结构 Abstract： Ball screw is an important component widely used in mechanical transmission systems, and its performance has a great impact on the operation efficiency and accuracy of mechanical systems. This paper mainly studies the structural design of ball screws, including thread profile, ball size, guiding structure and sealing structure. Firstly, three commonly used thread profiles, triangular, trapezoidal and circular arc, were selected by analyzing and comparing the thread profiles. The comparison results show that the circular arc thread profile has better mechanical properties and wear resistance. Secondly, the suitable ball size and quantity were determined according to the load characteristics and operating conditions of the ball screw. The optimal ball size and quantity range were determined through finite element analysis and experimental verification. Then, the guiding structure of the ball screw was designed, including guiding groove and guiding body. The optimal guiding structure parameters and layout scheme were determined through finite element analysis and experimental verification. Finally, the sealing structure of the ball screw was designed, including end cover seal and reciprocating seal of ball. The optimal sealing structure parameters and material selection were determined through experimental verification. Keywords: ball screw; structural design; thread profile; ball size; guiding structure; sealing structure,X52卧铣床的滚珠丝杠防护罩可以起到保护滚珠丝杠的作用，避免灰尘和杂物进入滚珠丝杠内部，从而影响机器的正常运行