KFFKFF Linear Track Kit, SBR12 1000mm, Includes 2 Units of 39.4 in SBR12 Rails & 4 SBR12UU Bearing Blocks, Ideal for Automation Equipment & DIY CNC Projects

KFFKFF Linear Guide Rail Set: Includes 2 x 39.4 in/1000 mm length KFFKFF guide rails and 4 x KFFKFF slide blocks. Dynamic Load Per Block: 372 N, Static Load Per Block: 549 N. Long-lasting & Sturdy: Crafted from carbon steel and aluminum with a chrome-plated surface for rust resistance and durability. Equipped with 4 aluminum slide blocks and ball bearings for smooth sliding. Silent Sliding: The aluminum SBR slide blocks and carbon steel linear shaft work harmoniously to minimize noise. The built-in ball bearing ensures frictionless movement, providing effortless control. Precision Engineering: The circular shaft dimensions and straightness are meticulously designed for high accuracy, repeatability, and stability. The sturdy aluminum base and slide block feature precise mounting holes for easy installation. Versatile Application: Suitable for various high-load automation equipment and DIY projects, including router/mill/lathe sleds, 3D printers, laser engravers, CNC machines, and trainer rocker plates.