EJM Ball Screw - over 50 years of experience in ball screw manufacturing and design
Emcor - specializes in individual assemblies and shorter production runs
Korta Group - a wide range of precision ballscrews in a whole variety of diameters and leads
Rexroth - wide range of precision screws and preloaded or adjustable-preload single and double nuts, eLine ball screws, drive units with ball screws, electromechanical actuators with ball screws and screw assemblies with front lubrication units
Rockford Ball Screw - founded in 1973, manufactures 81 standard lines of ball and acme screws
Roton - rolled thread ball scres and high performance ball nuts with very high efficiency, in high carbon or alloy steel
SKF - highly efficient miniature ball screws, large rolled screws, rotating nut system and ground ball screw
Thompson - metric and industrial sized, featuring internal ball returns, integrated wipers, round and square body shapes, multiple circuit and load options and various mounting configurations (flange, thread and cylindrical)
Threadcraft - manufactures and repairs ball screws for industrial, aerospace and defense applications
Umbra - general ball screws, high load ball screws, hybrid ball screws using ceramic balls, screws with vibration damping devices, miniature ball screws and motorized ball screws
Wedin - makes "any motion control device" including ball screws, nuts, gears, shafts and splines