What factors affect the performance and longevity of ball screws?

怡合达滚珠丝杠是一种机械传动元件，主要用于将旋转运动转化为线性运动。其结构包括螺纹母和螺纹杆，螺纹母内部镶嵌有许多滚珠，螺纹杆上也有相应数量的螺纹。当螺纹杆旋转时，滚珠会在螺纹母和螺纹杆之间滚动，从而使螺纹杆产生线性运动。 怡合达滚珠丝杠具有精度高、传动效率高、运动平稳、寿命长等优点，被广泛应用于机床、自动化设备、工业机器人等领域。

What are some common maintenance and repair procedures for ball screws?

以下是一篇关于滚珠丝杠的外文文献： Title: Ball screw drives: Their performance, modeling, and control – A review Authors: Adel A. El-Sharkawy, Mohamed H. Elbestawi Journal: Mechanism and Machine Theory Year: 2003 Abstract: Ball screw drives are widely used in many applications due to their high efficiency, low friction, and high accuracy. This paper provides a comprehensive review of the performance, modeling, and control of ball screw drives. The performance analysis includes the kinematic and dynamic behavior of ball screw drives, as well as the influence of various design parameters on their performance. The modeling section discusses the development of mathematical models for ball screw drives, including both analytical and numerical approaches. The control section presents various control strategies that have been used to improve the performance of ball screw drives, such as position control, velocity control, and force control. The review concludes by discussing some of the current challenges and future research directions in the field of ball screw drives. Keywords: ball screw drives, performance analysis, modeling, control.