There are two types of combined height of linear guide rail: high assembly type and low assembly type. As the name implies, the combined height of high assembly type (from the bottom of slide rail to the top of slider) is higher, while that of low assembly type is lower, depending on the specification, the difference is between 2~7mm and 7 mm. The reason for this difference is that the height specification of slider is different, which generally has nothing to do with slide rail.
High-assembly linear guide rail is a four-row single-arc tooth-shaped contact linear guide rail, and it is also a heavy-duty precision linear guide rail with good structural design. Compared with other linear guide rails, it improves the bearing and stiffness capacity, and the four-way bearing characteristics and automatic self-aligning function can absorb the assembly error of the installation surface and meet the requirements of high precision. The concepts of high speed, high load, high rigidity and high precision have become the development trend of industrial products.
The low-assembly linear guide rail is designed with four rows of steel balls, which has the characteristics of high rigidity, high load, four directions and other loads, and has the function of automatic centering, which can absorb the assembly error of the installation surface and meet the requirements of high precision. The combination of reducing the combined height and shortening the length of the slider is very suitable for equipment with less mechanical and space requirements in the high-speed automation industry.
The highly assembled linear guide rail is suitable for use in environments with large installation space and heavy load, such as grinders, milling machines, lathes, boring machines, drilling machines, comprehensive processing machines, etc.
Low-assembly linear guide rail is suitable for use in environments with small device space and small load, such as engraving machines, packaging machinery, semiconductor machinery, etc.
Generally speaking, the combination height of linear guide slider determines high assembly or low assembly, and the decisive factor is the allowable height of the use plane. With the same size, the height of the slider is different. For high assembly, the guide rail and slider are assembled together, and the assembly with relatively low height will be slightly higher.
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