Product: HGR15 / HGR20 Square Linear Guide Rail kit What’s included 2 × HGR linear rails (HGR15 and/or HGR20 series) 4 × slider blocks (compatible with HGH-CA or HGW-CC types) Key benefits — why you need this Precise, smooth linear motion: Reduces play and vibration for accurate positioning in machining, robotics, and automation tasks. Durable bearing steel construction: Linear bearings are made of high-quality bearing steel for long service life and consistent performance under load. Ready-to-install kit: Rails and matching slider blocks are supplied together for straightforward assembly and immediate use. Wide compatibility: Designed to work with the listed slider block models and common HGR-type mounting systems, simplifying upgrades and replacements. What makes it stand out Matched components: Rails and slider blocks are selected to work together, minimizing alignment issues and ensuring predictable running behavior. Robust materials: Hardened bearing steel in the linear bearings improves wear resistance and extends maintenance intervals. Versatile form factor: Square HGR rails provide stable support and easy mounting options for a variety of equipment layouts. Function and compatibility Function: Provides linear guidance for load-bearing, positioning, and motion transfer in industrial and hobby applications. Compatible slider block models listed: Hgh15ca, hgh20ca, Flang Hgw15cc, Flang Hgw20cc (package includes compatible HGH-CA / HGW-CC slider blocks). Mounting: Standard HGR rail mounting patterns for direct integration with existing fixtures and frames. Performance and material notes Bearings: Linear bearings are manufactured from high-quality bearing steel to deliver smooth rolling contact and improved wear life. Reliability: Designed for repeated linear movement and stable load support in controlled motion systems. Maintenance: Periodic lubrication and inspection will keep performance consistent; use industry-standard lubricants appropriate for bearing steel. Typical applications (use scenarios) CNC routers and milling machines: Replace worn guides or upgrade motion components to restore precision and reduce chatter. Automation and pick-and-place systems: Provide repeatable linear travel for end effectors, slides, and transfer stages. Camera sliders, lab stages, and test rigs: Deliver stable, low-friction linear motion for measurement, imaging, and positioning equipment. Package confirmation This kit contains 2 HGR linear rails plus 4 compatible slider blocks (HGH-CA / HGW-CC), with linear bearings made of high-quality bearing steel for durable, precise operation. If you need specific matching of rail length, tolerance class, or additional slider block quantities, verify the exact HGR series and slider model variants before ordering.