Need a reliable sprocket for your #41 roller chain setup? This one's a Type B with a hub, heat-treated for strength, and has 12 teeth with a 1-inch bore. Part number 41B12H-1\, made by Aftermarket in China but built to do the job. Perfect for go-karts, small machinery, conveyor systems, or any project using #41 chain. The heat treatment means it'll last longer under stress. Brand new and ready to install. Whether you're building, repairing, or upgrading equipment, this sprocket is a solid choice. Much better than trying to reuse a worn-out one! Just match your chain size and bore requirements.