How to find the right linear guide?

- Nov 20, 2019-

Linear sliders can be divided into: roller linear guides, cylindrical linear guides, and ball linear guides. They are used to support and guide moving parts and make reciprocating linear motion in a given direction. Depending on the nature of the friction, linear motion guides can be classified into sliding friction guides, rolling friction guides, elastic friction guides, and fluid friction guides.


       Recirculating ball guides are undoubtedly the most commonly used type of linear guides for a wide range of applications. The technology they use provides important advantages in load capacity, accuracy and torque control. However, in some conditions and applications, their advantages may become limiting. In such cases, it is recommended to choose a different solution.


       1, coping with deviation

       The recirculating ball guide is a high-precision product with a high capacity to handle heavy loads in all areas. However, to achieve these results, the accuracy of the parallelism and flatness of these rail mounts must be one tenth of a millimeter.

       Therefore, when used for structures that are not particularly precise and rigid, some measures that add additional cost and time, such as fine grinding of the base surface, long and complicated mounting operations, are required.


       2. Working in harsh environments

       The use of multiple spheres of very small diameter in a recirculating ball guide creates a large number of contact points between the slider and the rail. This means that these rails can handle extremely heavy loads very simply and are the best choice for a wide range of applications.

       However, in the environment where the rails are not completely clean, the presence of debris and impurities may become an obstacle that cannot be overcome by such rails: the small spheres fit tightly and cannot slide easily, and the protective shield on the slider does not provide sufficient protection and slippage. The block stops working and locks up.


       03, quiet work

       Production and industrial environments were the first to require a quiet handling system. This is a basic requirement for compliance with noise control regulations and ensuring a healthy and productive workplace. In other areas, such as medical and hospital applications, the most important requirement (after the mass sliding capacity) is to avoid any form of interference to the user or patient.


       04, customized

       The specific requirements typically associated with configuring linear guides or dedicated surface treatment can result in long waits and high costs.


       The above is Xiaobian's explanation and opinions on how to find a suitable linear guide, I hope to help everyone!