Factors affecting the clearance between ball screws. The clearance problem of the ball screw can directly affect the normal and effective reciprocating motion of the entire straight line. Although there are corresponding methods to adjust this gap problem, it is necessary to find the root cause, and only by finding the root cause can we treat both the symptoms and the root cause. In many cases, ball screws may cause the gap to widen, and the factors that affect the clearance of ball screws are mainly the following
1、 The main reason for the excessive torque displacement may be due to improper material selection or inadequate heat treatment. Of course, if the initial design, that is, the grasp of length, is not in place, it will also affect the torque displacement
2、Improper installation of bearings: If the ball screw and bearing are not properly fitted during installation, it can cause the shoulder of the rod to be too long or too short when subjected to external loads. In this case, the existence of gaps is inevitable. Moreover, the inclination of the bearings can lead to poor vertical angles
3、The parallel surface of the support is not flat enough. If the parallelism of the parallel surface of the supporting screw does not meet the standard at the beginning, it will also cause a large gap during installation, and in this case, adjusting the screw will not have any effect on changing it At the beginning of installing and using ball screws, the fixing factors that must be considered are the three mentioned above. However, there are actually more factors or problems that affect the clearance between the screw rods. There are also situations where the nut seat or bearing is not installed properly, especially when the bearing is not installed properly, resulting in clearance problems, which is a very common basic phenomenon.