VEVOR 2PCS Linear Rail 0.78-47 Inch, Linear Bearings and Rails with 4PCS SBR20UU Bearing Block, Linear Motion Slide Rails for DIY CNC Routers Lathes Mills, Linear Slide Kit fit X Y Z Axis

VEVOR 2PCS Linear Rail 0.78-47 Inch, Linear Bearings and Rails with 4PCS SBR20UU Bearing Block, Linear Motion Slide Rails for DIY CNC Routers Lathes Mills, Linear Slide Kit fit X Y Z AxisFine WorkmanshipHeavy-Duty MaterialComplete Linear Guiding SystemSimple InstallationQuiet OperationExtensive ApplicationType: Linear Actuator,Length: 47 in / 1200 mm,Optical Axis Hardness: HRC58-60 Degrees,Model: SBR20-1200 SBR20UU,Guide material: Axis - 45 Carbon Steel Optical Axis, Chrome-Plated Surface Hard Axis; Bracket - Aluminum,Optical Axis Accuracy: Optical Axis Accuracy g6 Level,Packing Size: 49 x 5 x 3 in / 122 x 12 x 7 cm,Diameter: 0.78 in / 20 mm,G.W.: 11 lbs / 5 kg