(1) The guide rail and slider move relative to each other through the cyclic rolling of steel balls. The end caps and bottom seals at both ends can effectively prevent dust and other foreign objects from entering the interior of the slider. Lubricating the steel ball circulation track through a nozzle provides sufficient and convenient lubrication.

(2) Adopting four rows of circular arc contact, running smoothly. The contact angle of 45 ° can withstand the common load in four directions: up, down, left, and right, and the ability to withstand the load can be changed by adding or subtracting the number of sliders.

(3) The friction mode of the linear guide rail is rolling friction, and the friction coefficient is reduced to 1/40 of the sliding track. Moreover, the difference between the dynamic and static friction forces is very small. Therefore, the linear guide rail has good follow-up performance, which is beneficial for improving the response speed and sensitivity of the CNC system. It can achieve seamless motion and has high positioning accuracy.

(4) The friction resistance of linear guides is small, lubrication is convenient and effective, and the contact surface wear is low, so the accuracy and performance are stable and long-lasting.

(5) Due to the small frictional resistance, the driving power and mechanical structure can be reduced, thereby achieving miniaturization, high-speed, and low energy consumption of the equipment.

(6) The linear guide rail is installed on a processed plane according to certain assembly steps, and can achieve high accuracy without special treatments such as scraping and grinding. The guide rail slider is interchangeable, easy to replace, and does not affect the accuracy of use.

1. As shown in the above figure, under the action of preloading, the ball contacts at two points in the direction of the load. Due to the small amount of slip, the ball can move smoothly.

2. Due to the curvature radius of the guide rail being 52-53%, it can withstand larger rated loads.

3. Due to sufficient preload, the four row circular arc contact structure provides strong rigidity.

4. This type of circular arc contact has self-alignment, which can ensure its accuracy and rigidity even when the ball produces elastic deformation, achieving smooth motion.