Who are the target audience for this English teaching on ball screws?

滚珠丝杠是一种机械传动元件，由螺纹导轨和滚珠凸轮组成。它具有高精度、高速度、高刚性和高效率等特点，常用于工业机械的线性运动控制系统中。 单螺母是一种螺纹连接元件，由螺纹和六角头组成。它通常用于固定和连接机械零件，可以通过旋转螺母来调整螺纹的张紧程度。 预紧是一种机械加工工艺，通过适当的预紧力来调整机械元件的结构和工作状态，以达到更好的工作效果。在滚珠丝杠和单螺母中，预紧通常是通过旋转螺母来实现的。

What are the advantages of learning about ball screws in English?

Ball screw teaching in English Ball screw is a kind of mechanical component that converts rotary motion into linear motion. It has a high precision and efficiency, and is widely used in various industries such as machinery, aviation, and aerospace. Here we will introduce the basic knowledge and working principle of ball screw. 1. Basic knowledge of ball screw Ball screw is composed of screw, nut, steel ball, preloading device and other components. The screw is a cylindrical rod with a spiral groove on the outer surface, and the nut is a block with a spiral groove on the inner surface. The steel ball is sandwiched between the groove of the screw and the nut, and the preloading device is used to maintain the contact between the screw and the nut. 2. Working principle of ball screw When the screw rotates, the steel ball moves along the spiral groove and drives the nut to move linearly. The preloading device ensures that the steel ball is always in contact with the groove of the screw and the nut, so that the motion is stable and efficient. Ball screw has many advantages, such as high precision, high efficiency, low friction, and high rigidity. It is widely used in CNC machine tools, industrial robots, and precision instruments. In addition, the ball screw can also be used in combination with a motor and a reducer to form a linear motion system, which can realize precise positioning and movement control.