The RHI&A C45KR20B1Z012 is a high-quality steel sprocket engineered for reliable power transmission in industrial applications. This genuine RHI&A component features 20 precisely cut teeth and a 12mm bore, complete with a keyway and set screw for secure shaft attachment. Designed for use with C45 series chains, its robust construction ensures optimal performance and durability in demanding operational environments. Dimensions include an outer diameter of 100mm, a hub diameter of 50mm, and a length through bore of 30mm, with a total weight of 0.45 kg.