Feature:1. High Accuracy and Smooth Motion: The linear rail with roller bearings ensures high accuracy and smooth motion for various machinery installations.2. Durable Material: Made of GCr15 C45 carbon steel, the linear rail is highly durable and can withstand extensive use in different environments.3. Easy Installation: The steel supports make installation quick and easy, saving time and effort for machinery setup.4. Wide Applicability: Suitable for engraving machines, woodworking machinery, printing machinery, and more, providing versatility for different applications.5. Excellent Performance: With a high hardness and a roughness of not less than 0.8mm, this linear rail offers excellent performance and reliability.Specification:Item Type: Linear Rail SlideMaterial: GCr15 C45 Carbon SteelHardness: HRC62 ± 2Accuracy: g6 h6Roughness: No less than 0.8mm, Rmax. Hard Tape: Approx. 0.8 ~ 3mm / 0.03 ~ 0.12inGrade Length: Approx. 100 ~ 3010mm / 3.94 ~ 118.5in, 6000mm available. Roundness: Not exceeding 3.0mm, Rmax. Straightness: 100mm, not exceeding 5mmWide Application: Linear motion ball bearing set is widely used in the installation of various machinery such as carving machines, woodworking machinery, printing machinery, machinery, etc. .Package List:2 x Metal Rod4 x Bearing6 x Accessory