SKF 20CR15133 Ball Screw

SKF 20CR15133 Ball Screw is a precision linear motion component from SKF designed to convert rotary motion into accurate, low-friction linear travel. This 18-inch-long screw assembly carries a thread described as 12-3 4 inches and uses a 5-inch bushing footprint to define its mounting interface, with catalog identification #159703 for cross-referencing in inventories and replacements. Ball screws operate with recirculating steel balls inside a true, ground screw shaft to minimize friction and maximize positioning repeatability, making this unit well-suited to CNC slides, precision automation stages, and other equipment requiring controlled, repeatable motion. The 18-inch length provides extended travel while maintaining a compact form factor, and the nominal thread specification dictates mating fits with compatible SKF ball nuts and end supports. When integrating this component, verify compatibility with your system’s end supports, bearings, and mounting pattern to ensure proper alignment and preload conditions. This SKF ball screw assembly supports high-precision positioning, reliable load transmission, and repeatable performance in demanding manufacturing environments. Note: always confirm exact interface dimensions and compatibility with your machine control system before purchasing a replacement.