Product Details Amazon Sales Rank: #1508 in BISS Size: 10 Brand: Martin Number of items: 1 Features For use with series 50 chain, 5/8" pitch for driver or driven sprocket needs Type BS sprocket with two setscrews and a keyway offers a stable and... ) Review & Description The Martin type BS sprocket, also known as a bored-to-size sprocket, includes two setscrews and a keyway, and is suitable for use with the series 50 chain with a 5/8&rdquo. Unlike gears that mesh with another gear, sprockets mesh with a chain, which then interacts with another sprocket. This sprocket has a hub extension on one side to provide stability and allow for the use of a full-depth keyway and two standard setscrews to attach the sprocket onto a shaft. to 1-3/4&rdquo. Some common benefits of chain-drive systems include minimal slippage, a fixed ratio between rotating shafts, and versatility with many different chain attachments and sprocket material selections. The company was founded in 1951 and is headquartered in Arlington, TX. Martin provides tools that meet American National Standards Institute (ANSI), National Aerospace Standard (NAS), and Deutsches Institut für Normung (DIN) standards. stock bore size from 5/8&rdquo. An example of a power transmission system is a standard bicycle, which has a sprocket and a chain to deliver power from the rider&rsquo.