Features: Complete Linear Rail Kit: This linear rail includes of 2PCS SBR12-500mm linear guide rail, 4PCS SBR12UU bearing blocks, 4PCS 12mm limit block fixed ring. High-Quality Material: The guide rail is made of high-quality carbon steel, using quenching and tempering technology, long-term wear resistance, super stability, strong bending resistance, ensuring linear motion. Beautiful and anti-rust surface treatment ensures durability and high hardness. High Precision: SBR12UU bearings adopt four-point contact design, which can withstand loads evenly in all directions. Premier quality bearing blocks moves smoothly while using, End stops which avoid the blocks sliding off the end of the rail. .
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