This #35 roller chain sprocket is built to handle serious power transmission applications. With 24 teeth and a 3/4 inch bore, it's designed for ANSI #35 chain with 3/8 inch pitch. The sprocket is made from 1045 carbon steel with teeth hardened to HRC38-42 using high-frequency quenching heat treatment - that's some serious durability! The blackened surface provides corrosion and rust resistance, making it suitable for harsh environments. The 3/16x3/32 keyway and two setscrews at 90 degrees ensure secure installation on your shaft. It's widely used in agricultural machinery, woodworking equipment, machine tools, and various industrial applications where reliable power transmission is crucial. The package includes the sprocket, two screws, and a wrench for easy installation. The quality is evident from the precise machining and robust construction - this isn't some cheap import that'll wear out quickly. Whether you're replacing a worn sprocket or building new equipment, this component delivers professional-grade performance at a reasonable price. It maintains stable operation even under heavy loads and demanding conditions, making it a reliable choice for mechanics, farmers, and DIY enthusiasts alike.