Sprocket - A Plate - 1/2" Pitch - 16 Teeth - 1/2" Bore Hardened Teeth Common Interchanges Click For More Information 41A16 X 1/2Sprocket - A Plate - 1/2" Pitch - 16 Teeth - 1/2" Bore Hardened Teeth Common Interchanges Click For More Information 41A16 X 1/2