Industrial 140A28 A Plate Sprocket 2 Inch Bore 28 Teeth

The 140A28 A-Plate Sprocket is a steel, single‑strand drive sprocket designed for ANSI #140 roller chain (1‑3/4" pitch) with 28 teeth, offering a robust, standard option for 140 chain drives. As an A‑plate, plain‑bore sprocket, it is typically stocked with a 1.500" bore and can be bored to size to fit a specific shaft when required. The teeth are non‑hardened, suitable for general‑purpose service where ordinary wear resistance suffices. This designation—140A28—appears across manufacturers’ catalogs for #140 chain and is used in drives ranging from manufacturing conveyors to machinery that relies on a 140 chain for transmit power. When selecting, confirm the bore size and whether a bore-to-size option is available from the supplier; the 1.5" stock bore is common, with options to tailor the bore for your exact installation.