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Diamond British Standard Duplex roller chain (D20002) 20B2 -1 1/4″ Dx

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The Diamond British Standard Duplex Chain Spare (D20002) is a heavy-duty, double-strand chain spare built for demanding industrial applications requiring high strength, durability, and reliable performance.

Product Highlights

  • Size ( Pitch x WIP ) (in mm): 31.75 x 19.56
  • Size ( Pitch x WIP ) (in inches): 1¼ x 0.77
  • Pitch(P): 31.75
  • Width Between Inner Plates (W) (Min): 19.56
  • Roller Dia (D) (Max): 19.05
  • Bearing Pin Dia (d) (Max): 10.19
  • Plate Height (H) (Max): 26.40
  • Width Over Bearing Pin (A) (Max): 79.00
  • Width Over Joints Fasteners (B) (Max): 85.10
  • Transverse Pitch (P1): 36.45
  • Projected Bearing Area Sq.cm: 5.82
  • Avg. Weight Per Metre (Kg): 7.33
  • Tensile Strength (Kgf) (Min): 17330
  • Check Mark Estimated Delivery : Up to 4 business days
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The Diamond British Standard Duplex Chain Spare (D20002) is an industrial-grade power transmission component manufactured to meet British Standard specifications. Featuring a duplex (two-strand) configuration, this chain spare delivers superior load capacity and operational efficiency in rigorous environments.

Crafted with precision and made from premium alloy steel, the D20002 offers excellent resistance to wear, fatigue, and mechanical stress, ensuring long-term reliability. It is ideal for use in machinery, conveyors, material handling systems, and other applications where robust, high-performance chain solutions are critical.

Designed for minimal elongation and smooth engagement, this duplex spare chain promotes reduced maintenance and extended equipment uptime. Its precise engineering ensures consistent alignment, making it a trusted choice for engineers and maintenance professionals alike.

Key Features:

  • British Standard-compliant duplex (double-strand) chain spare

  • High tensile strength and fatigue resistance

  • Ideal for heavy-duty mechanical and industrial systems

  • Long service life with low maintenance requirements

Perfect for industrial environments where strength and dependability are essential, the D20002 duplex chain spare delivers powerful performance and longevity.