Martin Sprocket & Gear 40B23 Sprocket is a 23-tooth sprocket designed to mesh with a 40-chain. The 40B23 designation identifies the 23-tooth configuration used in 40-series chain drives. Manufactured by Martin Sprocket & Gear, this sprocket serves as a precise power-transmission component for compatible chain-drive systems that require a 40 chain and a 23-tooth engagement.
