In recent years, with the continuous “invasion†of smog weather, Beijing’s sky is also warning of smog, which has a great impact on people’s daily travel and life. According to the Beijing Municipal Environmental Protection Bureau, according to the forecast of China Environmental Monitoring Station, from December 16 to 21, 2016, a large-scale regional heavy pollution process will occur in the Beijing-Tianjin-Hebei region, as well as in Shandong and Henan. Red heavy and above pollution levels will be reached from December 17th to 21st. Schools in primary and secondary schools are closed or flexible teaching. The motor vehicles are limited to single and double numbers according to the tail number. The official vehicles are based on single and double numbers, and 30% of the total number of vehicles are additionally stopped. Guide Slider Introduction 1. Roller guide block is a precision linear rolling guide, with a high carrying capacity and high rigidity, the repeated action, start, stop the reciprocating frequency can be reduced in the case of high weight And transmission mechanism and power costs. 2. Roller guide block can get high sensitivity and high performance linear motion. In the case of heavy load or load, the elastic deformation is small and can get a smooth linear motion, no crawling. 3. Roller guide block because of its rolling body - roller in the rolling guide, and can automatically center, it can improve the positioning accuracy of the machine. 4. The roller in the roller guide block in the matrix in the circular motion, so the use of rolling rail block, not limited by the length of the machine bed, according to the size and selection of specifications to determine the number of rails. 5. Roller guide block application of a wide range of small size can be used in molds, instruments and other linear motion components, large size can be used for heavy machine tools, precision instruments of the plane linear motion, especially for NC, CNC machine tool. Basic structure: Roller guide block mainly by the body, the end cap, cage and rolling body and other components. One of the rolling body used for the roller. The rollers are constantly moving in the body and subjected to a certain load. Roller with a central guide, the movement can be automatically centering, so as not to shift, is conducive to movement under the load flexibility, and long life. Guiding System, Elevator Guiding System, Elevator Guiding System Design,Guide Slider Realever Enterprise Limited , https://www.cnelevator-parts.com