Ball Screws

PBC Linear
PBC Linear is a leader in the engineering, manufacturing, and assembly of a wide range of linear motion products, along with custom engineering services. Our core line of linear components includes bearings, shafting, rail assemblies, and cam roller sliders. Building on this strong foundation, we have created a sophisticated family of products that includes lead screws and motor lead screw assemblies, actuators, cartesian robotics, and mechatronics assemblies.

SDP/SI – Stock Drive Products/Sterling Instrument

SDP/SI - Stock Drive Products/Sterling Instrument is a U.S.-based manufacturer of power transmission and motion control products, serving customers since 1950. The company specializes in precision gears, high-quality mechanical components, gearboxes, and the assembly of both mechanical and electromechanical subassemblies. SDP/SI is part of the Designatronics family of brands, offering a wide range of stock mechanical component options and customized solutions to meet diverse engineering needs.