Product: HGR15 / HGR20 square linear guide rail kit What’s included 2 x HGR linear rails (available in HGR15 or HGR20 sizes) 4 x slider blocks: HGH15CA / HGH20CA or flange type HGW15CC / HGW20CC (matching to rail size) Key functions and material Precisely guides linear motion for axes and stages. Linear bearings and slider blocks are manufactured from high-quality bearing steel for durability and consistent performance. Designed for repeatable, low-friction travel when mounted and aligned correctly. Why you need this product Precision: Provides accurate, stable linear guidance for machining, positioning, or measuring applications. Durability: Hardened bearing steel construction resists wear and maintains accuracy over long service life. Compatibility: Matches standard HGH/HGW slider-block profiles and common HGR rail mounts, simplifying replacement or upgrade of existing linear systems. Versatility: Available in two common sizes (HGR15, HGR20) to fit a range of load and space requirements. Performance highlights Smooth, low-friction motion suitable for precision machinery. Robust slider-block options (carriage and flange types) to suit different mounting needs. Suited for repeated travel, indexing, and positioning tasks where stability and accuracy matter. Typical applications CNC routers, milling machines, and linear axes where precise, repeatable motion is required. Automated equipment, pick-and-place systems, and production lines that require reliable linear guidance. Laboratory stages, optical benches, and inspection equipment needing stable, low-drift linear movement. Installation and care (practical tips) Verify rail size (HGR15 vs HGR20) and slider-block model (HGH-CA or HGW-CC) match your application before installation. Mount rails to a flat, rigid surface and align carefully to avoid premature wear. Maintain periodic lubrication and check for debris to preserve smooth operation and service life. Models and compatibility (keep in mind) Slider-block models included: HGH15CA, HGH20CA (carriage type) and HGW15CC, HGW20CC (flange type). Rails: HGR15 or HGR20 depending on chosen kit. Linear bearings are made from high-quality bearing steel. This kit provides a straightforward, durable solution for replacing or building precise linear motion assemblies using standard HGR rails and HGH/HGW slider blocks.