Ball screw as a very common CNC lathe and many precision instrument parts, each component has a very important role, related to the quality of products. Today, let's talk about the function of ball screw reverser.

滚珠丝杠反向器有多种形式，滚珠丝杠反向器的主要作用就是连接滚珠循环的两端，使每个滚珠循环回路都是一个闭路循环，滚珠丝杠反向器会在螺帽和滚珠丝杠轴之间做无限循环运动。

There are many forms of ball screw reverser. The main function of the ball screw reverser is to connect the two ends of the ball cycle, so that each ball cycle circuit is a closed cycle. The ball screw reverser will make an infinite cycle movement between the nut and the ball screw axis.

滚珠丝杠滚珠的不同的循环方式反相器也不一样，滚珠丝杠滚珠内循环的一般是链接相邻两条滚道形成一个循环回路。

The different circulation ways of the ball screw and the inverter are also different. The internal circulation of the ball screw and the ball is to link two adjacent raceways to form a circulation loop.

端盖循环滚珠丝杠和端部导流滚珠丝杠是在螺母两端各有一个反向器，形成循环回路。

The end cap circulating ball screw and the end guide ball screw have a reverser at each end of the nut to form a circulating circuit.

如果是外循环滚珠丝杠，那么通常就是使用一根弯管将钢球从一头导出再从另一头导入形成循环回路。

If it is an external circulation ball screw, it usually uses a elbow to lead the steel ball out from one end and then lead it in from the other end to form a circulation circuit.

内循环有三种反相器，按照外型分为，圆形和腰型，还有这一种是反向板，配合螺母内螺纹弧度安装进去，用S型弯道进行循环，国内非常长见的是圆形内循环反相器，而且是塑胶的，国外一般采用金属腰型反向器居多。

There are three types of internal circulation inverters, which can be divided into round and waist type according to the appearance. The other type is reverse plate, which is installed with the internal thread radian of nut, and circulates with S-shaped curve. Circular internal circulation inverter is very common in China, and it is plastic. Metal waist type inverter is generally used in foreign countries.