Linear Guide Rail Kit, 1700mm 2-Pack With Ballscrew

Linear guide rail kit delivers smooth, accurate motion for DIY CNC routers, lathes, and mills—helping reduce vibration and binding on long-travel builds. This 1700 mm set pairs dual HGR20 rails with an RM1605 ballscrew and support hardware for stable linear movement, low friction travel, and consistent positioning. Built from hardened steel with a chrome-plated surface, it’s designed for demanding automation and precision motion projects where rigidity and repeatable travel matter.

• Includes 2× HGR20 1700 mm rails, 4 blocks, RM1605 1700 mm ballscrew, ball nut, BF12/BK12 supports, and 8×12 mm plum coupling


• Delivers smooth motion with low noise and low friction for accurate linear travel


• Boosts rigidity with high-hardness steel components and chrome-plated anti-rust surface


• Simplifies mounting with pre-drilled rail holes and standard M4×16 mm fixing points


• Fits CNC automation, measuring equipment, and machines needing long-stroke precision linear movement

Built for makers upgrading a CNC motion system or assembling a new long-axis platform, this linear slide rail and ballscrew combo helps keep movement stable under load while supporting precise feed control. The HGR20 profile rails and matching blocks are suited to applications that demand straight travel and repeatability, while the RM1605 ballscrew supports controlled positioning across the full 1700 mm length. Add it to your build plan now and grab yours today to keep your project moving forward without rework.

• Rail length: 1700 mm / 66.9 in (2 rails)


• Rail type: HGR20


• Ballscrew: RM1605-1700 mm with ball nut


• Supports/nuts: BF12 / BK12 kit


• Block size (L×W×H): 7.3×4.2×3.4 cm / 2.8×1.6×1.3 in


• Fixing screw hole size: M4×16 mm


• Allowable static torque: 0.17 kN·m


• Static load rating: 25.31


• Materials: Carbon steel rails; GCr15 bearing steel bearings/blocks


• Performance: Smooth motion, low noise


• Net weight: 12 kg / 27 lb