Martin 40BS137/8 Bored to Size Sprocket - 40 / 1/2 in

Product Description

The Martin 40BS137/8 is a bored to size sprocket made from high carbon steel. It features a half inch bore and thirteen teeth, designed for standard roller chains with a pitch of 40 / 1/2 inch.

• Complete with keyways and setscrews
• Tolerances meet or exceed ANSI standards
• Manufactured with precise machining for consistent quality

Product Highlights

This finished bore sprocket is shaft ready, minimizing the need for additional modifications. Its design ensures that bores are concentric to the pitch line, which enhances performance by minimizing run out.

Product Information

Standard Information

• Brand: Martin
• Country of Origin: United States

Technical Specifications

• MPN: 40BS137/8
• Pitch Diameter: 2.0893 inches
• Bore Diameter: 0.8750 inches
• Outside Diameter: 2.3290 inches
• Number of Teeth: 13
• Hub Diameter: 1-9/16 inches
• Length Through Bore: 0.8750 inches
• Surface Treatment: Protective Coating
• Storage Dimension Width: 2.5625 inches
• Storage Dimension Height: 15/16 inches
• Storage Dimension Length: 2.5625 inches