Industrial 40A42 Roller Chain Sprocket Heavy Duty

The 40A42 roller chain sprocket is a heavy‑duty, shaft‑mounted A‑Plate steel sprocket designed for ANSI #40 roller chain drives, featuring a 2-1/2 inch bore and 42 teeth for reliable torque transfer in industrial power transmission. With a 0.500 inch (12.7 mm) chain pitch and precision‑machined steel construction, it supports conveyors, packaging machinery, agricultural equipment, and other material handling systems that require synchronized motion. Maintenance technicians, OEMs, and system integrators use this sprocket for equipment repairs, replacement of worn drive components, and retrofits of chain‑driven machinery.