Choose one --- linear guide rail width is determined. Width refers to the width of the rail track. Track width is one of the key factors that determine the size of its load 2 --- determine long track. This length is the total length of the rail, not the trip. Total length = effective stroke + slider spacing (two or more sliders) + slider slider length × number + safe journey ends, if the increase in the shield, the shield at both ends of the need to add compression length. 3 --- determine the type and number of sliders. The slider is used in two ways: flange type, square. The former height a little lower direct linear guide, but a little wide linear guide service, mounting hole is threaded through holes brand linear guides, linear guides the latter a little higher, narrower, mounting hole is threaded blind holes. Both have short, standard and extended type of points (some brands, also known as the load, heavy-duty and heavy load), the main difference is the slider body (metal part) the length of the mounting hole hole course spacing may be different, most short type slider only two mounting holes. Slide number should be determined by calculating the user, this is only a recommendation: small enough to carry, more to be installed. Slide rails width and the type and number three elements constitute the load size. 4 --- determine the accuracy level. Manufacturers of products will be marked in any accuracy class, some manufacturers label more scientific, the general level of the first letter of the name, such as the general level marked N, Precision Standard P. Mold-related issues related to the design of linear guide rail mounting base surface roughness straight, flatness, straightness and appearance inspection. Requirements: When the level of debugging a good future, must interferometer to measure the main straight rail mounting base surface (we usually close to a linear guide surface of the right column of the main rail) flatness of the laser allows each convex 10m 0.05mm, the whole travel straightness allow convex 0.03mm. Roughness 1.6, look no casting defects. Chamfered surface and linear guide rails installed base side of the reference mounting surface. Requirements: chamfer radius less than or equal to 3.5mm, if found to be too large or protruding chamfer, using stone and rasp timely treatment, otherwise it will cause poor precision rail mounting or interfere with the slider. Linear rail mounting base locking screw hole machining. The line of action of the movable rail is used to support and guide the moving member, according to a given direction reciprocating linear motion. Direct linear guide _ _ Korea and Taiwan linear guide transmission machinery provided by the Dongguan City, Transmission Machinery Co., Korea and Taiwan. Dongguan City, South Korea Taiwan Transmission Machinery Co., Ltd. (www.dghantai.com) strong, credible, in Dongguan, Guangdong and other machine tool accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Korea Taiwan transmission machinery and you hand into the brilliant, for a better future!