Largest and the complete range of linear sets, linear shafts like standard, stainless, chrome, and hollow, supported shafting, end supports, ball screw, ceramic, self lube bushings, and accessories. Shafttech has a full range of metric and imperial sizes available. You can choose between economy, standard, open, double, and flanged linear ball bearing bushings. These ball bushings are suitable for precision linear motion applications such as small CNC machines or 3D printers.