The SC8UU and SCS8UU 8 mm linear motion ball bearing sliding bushing is designed to provide smooth, precise movement on 8 mm shafts. Supplied as a single piece, it is suitable for common axis and carriage configurations used in 3D printers and CNC machines, helping to improve axis stability and repeatable positioning. Key benefits Smooth, lowfriction linear movement on 8 mm shafts for reliable axis travel. Simple, compact bearing design that integrates into standard 3D printer and CNC configurations. Improves axis alignment and repeatability, contributing to better print quality and cutting accuracy. Durable construction designed for repeated use on everyday motion tasks. Key attributes Model: SC8UU / SCS8UU Bore size: 8 mm Type: linear motion ball bearing sliding bushing for linear axis Quantity: 1 piece Shaft compatibility: fits standard 8 mm diameter shafts Application scope: suitable for 3D printers and CNC machines Material: not specified in listing Performance: supports smooth, precise linear motion with reliable service on typical axis applications Specifications and compatibility Fits 8 mm shaft systems commonly used on hobby and professional 3D printers and CNC equipment Designed to enable direct mounting on linear axes and hardware blocks that utilize SC8UU/SCS8UU bearings Built to deliver consistent motion performance under standard operating conditions for axis assemblies Use cases 3D printer X, Y, or Z axis: dropin replacement to restore smooth carriage movement and improve print accuracy on a standard 8 mm shaft system CNC machine linear axis: used for precise tool head or bed movements, contributing to repeatable positioning and surface finish Robotics or automation projects: implements compact, reliable linear motion on 8 mm shaft assemblies for smallscale actuators or guided sliders Installation notes Ensure the 8 mm shaft is clean and straight before installation Align mounting holes with the bearing housing to maintain proper preload and prevent binding Use appropriate fasteners and mounting hardware compatible with your axis block or carriage This single piece SC8UU / SCS8UU 8 mm linear motion bearing provides a straightforward solution for adding or restoring precise linear movement in 8 mm shaft based systems, with clear applicability to common 3D printing and CNC workflows.