The Browning 40B48 roller chain sprocket is a No. 40 chain-size sprocket with 48 teeth and a 5/8-inch bore, designed to drive a No. 40 roller chain in power-transmission applications. Its stock bore is 5/8 inch, and the part is listed as an ANSI-standard sprocket compatible with No. 40 chain specifications. This Browning model is intended to engage No. 40 roller chain elements and works with Browning 40-chain drive components to form a complete sprocket set.
