Linear Rails by Ultimate Linear systems (ULS) MGN9H

Elevate your motion systems with ULS (Xinxin) high‑end linear guide rails, engineered for precision, durability, and seamless performance. Developed by elite industry veterans across the Taiwan, ULS has emerged as a leading global brand, committed to delivering world-class linear motion components. 

Note: Rail ship with light machine oil, before installation we suggest soaking the carriage (or complete rail) in IPA for 5-10 minutes and lubing with you preferred Grease, ULS recommends NSK GRS PS2, however we have run these with EP2 during our testing without problems.

Key Features

• Exceptional Precision & Interchangeability
  Manufactured with ±1 µm per 1000 mm accuracy, ULS linear rails ensure consistently high-performance across batches—enabling seamless interchangeability and minimizing inventory variability 

• Robust, High-Speed Operation
  Featuring super-low surface roughness and optimized steel-ball circulation, these rails deliver ultra-smooth, high-speed motion with enhanced rigidity and torque support, ideal for demanding robotic and automation tasks 

• Premium Material & Craftsmanship
  ULS guide rails, sliders, and steel balls are manufactured from customized SUS440 martensitic stainless steel, delivering exceptional hardness and durability. With a Rockwell hardness rating of HRC 58–62—comparable to tool steel—they offer outstanding wear resistance and meet the stringent export standards required in Europe and North America. Each rail undergoes a meticulous assembly process and rigorous quality testing to ensure long-term stability, corrosion resistance, and safe, reliable operation.
  

• Comprehensive Support & Technical Resources
  ULS backs its products with a 1.5‑year warranty, video inspection reports, machinery test certifications, and downloadable 2D/3D CAD models, lifespan analysis, and wear simulations are readily available 

• Versatile Industrial Application
  Widely adopted across medical devices, 3C electronics, textiles, new-energy systems, and defense industries, ULS rails are engineered to meet the performance standards of high-end equipment supply chains

Links

• Cad Models