1. Strong bearing capacity. The linear rolling guide pair has good bearing capacity, and can bear the force and moment loads in different directions, such as the force in up, down, left and right directions, as well as the bump torque, shaking torque and swing torque. Therefore, it has good load adaptability. Proper preloading in design and manufacturing can increase damping, improve vibration resistance, and eliminate high-frequency vibration. The sliding guide rail can bear less lateral load in the direction of parallel contact surface, which is easy to cause poor operation accuracy of the machine tool.
2. Easy assembly and interchangeability. The traditional sliding guide rail must scrape and grind the guide rail surface, which is both time-consuming and time-consuming, and once the accuracy of the machine tool is poor, it must be studied again. The rolling guide rail is interchangeable. As long as the slider or guide rail or the entire rolling guide rail pair is replaced, the machine tool can regain high accuracy.
3. As mentioned earlier, since the relative motion of the ball between the guide rail and the slider is rolling, friction loss can be reduced. Generally, the rolling friction coefficient is about 2% of the sliding friction coefficient, so the transmission mechanism with rolling guide rail is far superior to the traditional sliding guide rail.
