What is the difference between a ball screw and a trapezoidal screw, a linear guide?

Ball screws, trapezoidal screws, and linear guides are generic conventional accessories. The names seem to be similar, but in fact they are completely different between the three, with different working principles, different production requirements, and different occasions of use. Taishang Precision Machinery Xiaobian will introduce the difference between a ball screw and trapezoidal screw and linear guide.

1. The difference between a ball screw and a trapezoidal screw. The difference between a ball screw and a trapezoidal screw is mainly the way the load is carried between the moving surfaces. The ball screw uses recirculating balls to minimize friction and increase efficiency, while the trapezoidal screw utilizes a low coefficient of friction between the sliding surfaces. Therefore, the trapezoidal screw does not reach the efficiency of the ball screw, and the efficiency is equal to about 90% of the ball screw. The fatigue life equation is very reliable within its scope of application. In summary, ball screw and trapezoidal screw have fundamental differences in their application fields because of their differences in their ability to provide for performance and life.