Guide to Ball Screw Bearing Types and Configurations
Ball screw bearing types include angular contact ball bearings, deep groove ball bearings, thrust ball bearings, and cylindrical roller bearings. The proper configuration involves using a fixed support at the drive end—typically with duplex or triplex angular contact bearings—to handle axial and radial loads, and a floating support at the opposite end—using deep groove or cylindrical roller bearings—to absorb thermal expansion. This configuration ensures high positioning accuracy, rigidity, and long-term system reliability.
