Product: HGR15 / HGR20 square linear guide rails with compatible slider blocks What this product does Provides accurate, low-friction linear guidance for machine motion and positioning. Delivers rigid support and stable travel for assemblies that require repeatable straight-line movement. Key components and specifications Rails: HGR15 and HGR20 square linear guide rails (HGR series). Slider block models: HGH15CA, HGH20CA and flange type HGW15CC, HGW20CC. Package contents: 2 × HGR linear rails plus 4 × slider blocks (HGH‑CA or HGW‑CC models as specified). Material: Linear bearings and rails made from high-quality bearing steel for wear resistance and longer service life. Why you need it — problems it solves Reduces friction and stick-slip compared with plain shafts, enabling smoother, more consistent motion. Improves accuracy and rigidity compared with non-guided assemblies, reducing vibration and deflection under load. Simplifies alignment and mounting for multi-axis setups by using matched HGR rails and slider blocks. Performance and attributes Function: precision linear guidance for translation motion and load support. Compatibility: designed for HGR-series systems; select slider model corresponding to HGR15 or HGR20 as required. Size options: HGR15 and HGR20 allow selection based on required load capacity and mounting envelope. Material advantage: bearing-grade steel construction increases wear life and load durability in industrial and laboratory environments. Maintenance: straightforward lubrication and inspection extend service life; replaceable slider blocks simplify repairs. Typical applications (practical use scenarios) CNC routing and light milling: precise, repeatable linear motion for gantries and axes where rigidity and smooth travel matter. Industrial automation and pick-and-place systems: reliable guidance for linear actuators and transfer stages to maintain cycle accuracy. Inspection equipment and linear stages: stable, low-friction motion for measuring probes, cameras, and positioning tables. What to check before ordering Match the slider block model to the rail size (HGH15CA / HGW15CC for HGR15; HGH20CA / HGW20CC for HGR20). Confirm the required rail length and mounting hole pattern for your equipment (this package supplies the rails and blocks; lengths and mounting details should match your design). Reliable choice for engineers and technicians A practical, serviceable linear motion solution built from high-quality bearing steel and compatible slider models in the HGR series.