SpecificationMaterial: Bearing steelPerformance: Smooth motion, low noiseComplete Linear Rail KitsLinear rail kit Corrosion-resistant, high strength, and wear resistance.Surface chrome plating treatment beautiful anti-rust, high hardness, with high accuracy and strong durability.Cylindrical guide composed of principal rail and aluminum support, stabilizing the original rail. Premier quality bearing blocks moves smoothly while using.The linear motion products and technology are widely used for automatic mechanical facilities under common accuracy. Our rail shaft is made with good quality steel plus aluminum alloy. It is a perfect combination of main axle and aluminum support, which nicely stabilizes the original rail. Premier quality bearing blocks moves smoothly while using.Package include1Pcs SFU1605-400mm1Pcs SFU1605-600mm1Pcs SFU1605-1000mm2Pcs SBR20-400mm2Pcs SBR20-600mm2Pcs SBR20-1000mm12Pcs SBR20UU3Pcs BK/BF12 End Support3Pcs Coupler3Pcs DSG16H Ballnut Housing
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