Martin Sprocket & Gear 50Bs28 Sprocket

Martin Sprocket & Gear 50Bs28 is a 28-tooth sprocket designed for use with 50 chain drives, featuring a 1-3/16 inch keyed bore that accepts a matching shaft and uses a secure key engagement to maintain precise tooth engagement with the chain. As a member of the 50B series, this sprocket is intended for power transmission systems that specify a 50 chain, providing the geometry and tooth count needed to transmit rotational motion through standard industrial drive trains in a broad range of settings. The keyed bore ensures secure shaft engagement, with the key providing resistance to slipping and misalignment under typical drive loads; this design supports reliable operation when paired with compatible Martin Sprocket hardware. With 28 teeth and a 50 chain specification, the 50Bs28 is designed for use in drives configured for 50B-series sprockets, offering consistent performance within the constraints of 50 chain drives.