Martin D50B11H is a double-strand, Type B roller chain sprocket designed for ANSI No. 50 chain, featuring 11 teeth and a 5/8 in stock bore. The sprocket’s outside diameter is 2.500 in with a 1.469 in hub, and it is manufactured from steel, weighing approximately 0.96 lb. This compact two-row sprocket engages two parallel rows of No. 50 chain to enhance drive capacity in power-transmission configurations, making it suitable for industrial machinery, conveyors, and material-handling equipment that rely on robust No. 50 chain drives.
