The Kolmb SC-SLIDE unit series is a brand of linear slide units, also known as linear bushings or slide bushings. They are used with cylindrical linear shafts to create a linear motion system for precise, low-friction straight-line motion. The KOLMB SC SLIDE UNIT Bearing, also known as the Aluminum Block Linear Slide Unit, is a compact and lightweight aluminum case unit pre-assembled with a standard KOLMB Linear Bushing (SC type). This unit is designed for use in conjunction with a cylindrical linear shaft to create a high-performance linear motion system.