Nut housing is an international standard product, which is divided into aluminum and steel. It is a part of the ball screw set. The ball screw nut housing is assembled on the nut of the ball screw, which can ensure the verticality of the installation surface that is close to the nut flange and the work table surface, thereby ensuring the installation accuracy of the ball screw. In addition to ball screws, it is also used for other types of screws such as lead screws.