Rockford Ball Screw Preloaded Ball Nuts

Preloaded ball screw assemblies consist of two standard ball nuts joined by an adjustable preload package containing a collar and bevel, or wave springs. As a method of eliminating backlash in a ball screw assembly, preloaded assemblies work one group of ball grooves in opposition to another. Preloaded assemblies increase stiffness and provide for accurate positioning with very little increase in applied torque or decrease in load capacity. Rockford Ball Screw stocks over 60 ball nut models including standard ball, preloaded, metric, freewheeling and custom.