Linear bearings are used in applications where a component needs to be moved along a straight line with high accuracy. The object may also need to be returned to its origin with high repeatability.

Linear Motion Guide Linear motion guides may also be referred to as linear guide bearings, square rail linear bearings, linear guideways, or recirculating ball bearings. This type of linear guide ...

In the early days of 3D printers, most builds used smooth rods and bearings that rode on them. But these days, printers are shipping with either V-slot extrusions with Delrin wheels or linear rails.