Product: HGR15 / HGR20 square linear guide rails with compatible HGH/HGW slider blocks Why you need this Deliver precise, repeatable linear motion for machines and fixtures where straightness and low-friction travel matter. Reduce alignment issues and play compared with plain shafts or low-quality guides, improving machining accuracy and part quality. Built for applications that require reliable support under load while maintaining smooth operation over long runs. What’s included 2 x HGR linear guide rails (HGR15 or HGR20) 4 x slider blocks (HGH‑CA / HGW‑CC series models: HGH15CA / HGH20CA and flanged HGW15CC / HGW20CC) Key benefits and performance Precision guidance: square HGR rails provide accurate linear tracking and stability for CNC, automation, and precision equipment. High rigidity and load support: designed to resist deflection under side and vertical loads, improving repeatability and surface finish. Smooth, low-friction movement: compatible HGH/HGW slider blocks roll on hardened raceways for consistent motion and reduced motor effort. Durable material: rails and sliders are manufactured from high-quality bearing steel for wear resistance and long service life. Flexible mounting and configuration: available in HGR15 and HGR20 sizes and with standard HGH or flanged HGW slider options to suit different installation and clearancing needs. Compatibility and models Rail sizes: HGR15 and HGR20 (square profile linear guide rails) Slider block models: HGH15CA, HGH20CA (standard blocks) and HGW15CC, HGW20CC (flanged blocks) Package contains two rails plus four slider blocks (HGH‑CA / HGW‑CC series) ready to install with standard mounting practices for these model families. Practical use scenarios CNC router or milling table: Use HGR rails with HGH/HGW sliders to support tool heads or workholding stages for smooth, accurate travel and repeatable cuts. Industrial automation and pick-and-place systems: Provide rigid, low-friction linear motion for conveyors, gantries, and actuator stages to increase cycle consistency. Precision inspection and laboratory stages: Create stable linear axes for measurement equipment, cameras, or optical assemblies requiring minimal drift and high straightness. Installation and maintenance notes Use manufacturer-recommended mounting tolerances and torque values to preserve rail straightness and slider performance. Regular light lubrication and periodic inspection of raceways and seals will extend service life and maintain smooth operation. Choose the appropriate slider type (HGH standard or HGW flanged) for your mounting footprint and load orientation. What makes this product stand out Industry-standard HGR/HGH/HGW model compatibility ensures interchangeability with many motion systems and replacement parts. Hardened bearing steel construction for reliable wear resistance and long-term performance in industrial and precision environments. A balanced package that includes rails and multiple slider blocks for multi-point support and immediate assembly. If you need precise, rigid, and durable linear guidance for CNC machines, automation systems, or precision stages, the HGR15 / HGR20 rails with HGH15CA / HGH20CA and HGW15CC / HGW20CC slider blocks provide a reliable solution.