ANSI #40 Roller Chain Sprocket 18T 1-1/4in Bore

Upgrade your power transmission system with this high-quality ANSI #40 Roller Chain Sprocket from Saelno. Designed for heavy-duty applications, this 18-tooth sprocket features a durable 1¼-inch bore with a ¼×⅛ keyway and two 90° set screws for secure mounting. Made from hardened ANSI 1045 carbon steel with HRC38-42 teeth (surface-hardened via high-frequency quenching), it delivers exceptional strength and wear resistance.

Corrosion-resistant black oxide coating ensures long-lasting performance in industrial, agricultural, or woodworking machinery. Fully interchangeable with Browning and Martin sprockets, this B-type sprocket is ideal for #40 chain drives. Package includes 1 sprocket, 2 screws, and a wrench for easy installation.