Linear bearings & guideways are primarily used in positioning table (positioning stage) applications.
The main function of a positioning table's linear or rotary bearing system is to carry the user mounted load while the table is in motion. The bearings are also a key element in determining the overall positioning table accuracy, repeatability, straightness and flatness.
Each bearing design provides advantages and disadvantages in load capacity, size, cost, stiffness, and friction. Selecting the right linear or rotary bearing system for a positioning table application is critical.