SFK00801 TBI minature ball screw

A Ball Screw is a transmission mechanical component in which a steel ball moves between the nut and the screw, which converts the sliding contact of the traditional screw into a rolling contact, and then converts the rotation of the steel ball in the nut into a Linear Motion. The ball screw has the characteristics of high positioning accuracy, long life, low pollution, high-speed forward and reverse transmission and conversion transmission. Because of the above characteristics, the ball screw has become the positioning and measurement system of the precision technology industry and the precision Machinery industry. One of the important components on.

Inner circulation: Inner circulation adopts inverters to realize ball circulation. There are two types of inverters. Cylindrical convex key reverser, its cylindrical part is embedded in the nut, and the end is provided with a reverse groove 2. The reverse groove is positioned by the cylindrical outer surface and the round key 1 at the upper end to ensure the alignment of the thread raceway direction. Oblate insert reverser, the reverser is a general round head flat key insert, the insert is embedded in the slot of the nut, and the end is opened with a reverse groove 3, which is positioned by the outer contour of the insert. Comparing the two inverters, the latter has a smaller size, which reduces the radial size of the nut and shortens the axial size. However, the outer contour of this kind of reverser and the dimensional accuracy of the slot on the nut are required to be high.