400-550mm Chromed Smooth 8mm Rod Steel Linear Rail Shaft Bearing 3D Printer CNC
Length: 100/150/200/250/300/350/400/450/500/550mm. Linear Shaft Rod. SC8UU Linear Slide Block. or 1 x SC8UU Linear Slide Block (bracket is not included). 1 x 8mm Carbon Steel Round Rod. Screw without processing, direct connected to bearing.