Description:

Material: Bearing Steel; Surface Treatment: Zinc Plated. Groove Type: U Groove; Groove Width: 8.1mm / 0.32 inch. Shaft Hole Diameter: 8mm / 0.31 inch; Overall Size: 40x10mm / 1.57x0.39 inch (Dia. x Thickness). DIY gadgets for you to build a camera track system and repair furniture. Widely used in sliding door and window. Suitable for all kinds of industrial equipment, drive mechanical equipment, printer machine, furniture hardware, office equipment and so on.