The Diamond American Standard Roller Chain Spare (D08A01) is engineered to meet the rigorous standards of industrial power transmission. With a pitch of 12.70 mm (1/2″) and a width between inner plates of 7.85 mm (5/16″), it ensures precise compatibility and optimal mechanical efficiency in American Standard roller chain systems.

Manufactured with high-grade materials, the D08A01 spare offers a maximum roller diameter of 7.92 mm, bearing pin diameter of 3.96 mm, and dual plate thickness of 1.50 mm for enhanced strength and load-bearing capacity. With an average weight of just 0.63 kg per metre, it delivers a perfect balance of performance and durability.

Whether for maintenance or replacement, this spare is ideal for high-speed, high-load applications in sectors such as manufacturing, automation, and agriculture. It features a minimum tensile strength of 1440 Kgf, ensuring resistance to wear and long service life under tough conditions.

Key Specifications:

• Pitch x WIP (mm): 12.70 x 7.85

• Pitch x WIP (inches): 1/2 x 5/16

• Roller Diameter (Max): 7.92 mm

• Bearing Pin Diameter (Max): 3.96 mm

• Plate Heights (Max): IP – 12.00 mm, OP – 10.40 mm

• Plate Thickness: IP – 1.50 mm, OP – 1.50 mm

• Width Over Bearing Pin (Max): 17.80 mm

• Width Over Joint Fasteners (Max): 21.70 mm

• Projected Bearing Area: 0.44 sq.cm

• Average Weight Per Metre: 0.63 kg

• Tensile Strength (Min): 1440 Kgf

Trust Diamond Chain quality for precision, performance, and lasting reliability in your chain-driven systems.