CNCMANS SBR20 Linear Rail 3000mm, 4PCS SBR20 Linear Rail 1500mm Linear Rail Shaft Rod + 8PCS SBR20UU Bearing Block and 4PCS Dowels for DIY CNC Routers Lathes Mills （spliced）

Product Features

• SBR20-3000mm Linear Rail Set: 4 x 1500mm SBR20 guide rails (each rail has a hole for dowel pin); 8 x SBR20UU slide blocks; 4 x dowel pins; 2 x adjustment handle, which can adjust the tightness of the slider; 32 pieces M6x20 screws; and 2 x 5mm wrench.
• Easy to Install: Dowel pin insert into the hole of 2pcs 1500mm rail shaft, you can extend the 1500mm rail to 3000mm rail for your project. The sturdy aluminum base and slide block have accurate mounting holes, making it easy for users to perform reliable installation and connection.
• Long-Lasting: The linear rail is made of carbon steel and aluminum with a chrome-plated surface for rust resistance and high durability. Built-in 12 aluminum slide blocks and ball bearings for smooth and unobstructed sliding.
• Low Noise Sliding: Aluminum SBR slide blocks and carbon steel linear shaft are perfectly paired. The built-in ball bearing provides low friction movement and is smooth and not tilted, allowing you to control more labor-saving.
• High Precision: Precise circular shaft dimensions and straightness, ensuring high accuracy, repeatability, and stability in its motion. SBR20UU bearings adopt four-point contact design, which can withstand loads evenly in all directions.