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Linear guides are mechanisms that can bear heavy loads while also guiding the linear movement of the loads simultaneously. They are designed for high loads and high stiffness, usually made from a high strength galvanised steel such as stainless steel so that they resist corrosion.
Linear guides consist of a mechanism in which roller elements recirculate along a ball groove formed on a rail and ball slide in a linear motion. Similar to ball screw assemblies, the bearings or rollers are then forced to change their circulating direction on the rail by a return guide, repeating the endless circulation motion. They have low friction and can take component loads in a linear directions with enhanced moving accuracy and high precision.
Linear guides are used to move machine tables in inspection apparatus and manufacturing equipment where high precision positioning is required. They are also found in machine cutting tools and material-handling robots.
