Linear Guides

About These Items These HGR linear rail kits offer high-performance motion guidance for CNC machines, 3D printers, milling systems, and industrial equipment. The 600 mm version includes a wear-resistant ball screw assembly, while the 1000 mm kit offers longer rails with four clamps and 34 end caps for flexible installation. Both kits are designed for accuracy, stability, and long-term use, serving as reliable upgrades or replacements for motion control setups. The 600 mm rail kit includes a precision-ground RM1605 ball screw, high-quality BK12/BF12 end supports, a durable coupler, and a corrosion-resistant nut housing. This configuration provides smooth and efficient transmission under repetitive use, ensuring consistent accuracy for automated linear motion tasks. It is ideal for equipment where synchronized, low-friction movement is required. Both rail kits feature integrated ball-bearing sliding blocks (HGH20CA) that reduce vibration and noise while firmly gripping the rail. The result is ultra-stable, low-friction linear motion, which helps reduce wear and improves positioning accuracy. Whether used in industrial or DIY environments, the sliding blocks ensure smooth, run-free operation over long distances. Made from medium-carbon steel (HRC58–62) and aluminum alloy components, these linear rails are engineered for strength and stability. Each surface features an electroplated coating ≥10 μm thick to protect against rust and corrosion, even in humid conditions such as garages or basements. Pre-drilled mounting holes ensure easy alignment and provide additional protection against wear and exposure. Manufactured to tight tolerances, these rails feature a surface finish of 0.1–0.22 μm and exceptional straightness of 5 mΩ/100 mm or 0.05 mm/1000 mm (depending on the model). Combined with precise hole spacing, this ensures reliable repeatability and accurate installation in linear motion systems. Whether used for cutting, engraving, or printing, these rails maintain reliable movement every time. Key Differences The 600 mm model (HGR20RM1605 600L) includes two 23.62-inch rails and a high-precision RM1605 ball screw, making it ideal for compact CNC or 3D printing applications requiring synchronized movement. The 1000 mm model (HGH20CA-1000L) includes two 39.4-inch rails with end caps and clamps, but does not include a ball screw. It offers greater reach and modularity for wider machines or DIY systems where a custom drive configuration is preferred. Specifications Model HGR20RM1605 600L Sliding Block Type: HGH20CA Rail Length: 600 mm / 23.62 in Diameter: Ø 25 mm / 0.98 in Straightness: 5 mΩ / 100 mm Surface Finish: 0.1–0.22 μm Dynamic Load Capacity: 17.75 kN / 116 kg Static Load Capacity: 27.76 kN / 180 kg Material: High Carbon Steel and Aluminum Quantity: 2 Rails + 1 Ball Screw Set Model HGH20CA-1000L Sliding Block Type: HGH20CA Rail Length: 1000 mm / 39.4 in Diameter: Ø 25 mm / 0.98 in inches Straightness: 0.05 mm / 1000 mm Surface Finish: 0.1–0.22 μm Dynamic Load Capacity: 17.75 kN / 116 kg Static Load Capacity: 27.76 kN / 180 kg Material: Medium Carbon Steel and Aluminum Quantity: 2 units Package Contents HGR20RM1605 600L Kit 1 x Linear Rail Kit (2 rails + ball screw assembly) HGH20CA-1000L Kit 1 x Linear Rail Kit (2 rails + 34 end caps + 4 clamps)