Bore: 8mm, Outside Diameter: 12mm, Length: 15mmMaterial - Sintered Bronze (copper-tin alloy). They are self-lubricating, making them maintenance-free. High wear-resistant and corrosion-resistant.Function - The bushings can be used for different purposes, such as positioning, wear and vibration reduction, or to isolate the shaft from special media to increase the life of the shaft.Application - Bronze bushings are most for general-purpose where moderate speeds and loads are present. Sleeve bearings are used in a vast variety of industrial equipment.More - They also can be used for reducing bore diameter or replacing worn-out original bushings on wheels.