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Diamond British Standard Triplex chain (D08303) – 08B3 – 1/2″ Tx

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The Diamond British Standard Triplex Chain (D08303) is a triple-strand roller chain designed for heavy-duty industrial applications, offering exceptional strength, efficiency, and durability under high-load conditions.

Product Highlights

  • Size ( Pitch x WIP ) (in mm): 12.70 x 7.75
  • Size ( Pitch x WIP ) (in inches): 1/2 x 5/16
  • Pitch(P): 12.70
  • Width Between Inner Plates (W) (Min): 7.75
  • Roller Dia (D) (Max): 8.51
  • Bearing Pin Dia (d) (Max): 4.45
  • Plate Height (H) (Max): 11.80
  • Width Over Bearing Pin (A) (Max): 44.90
  • Width Over Joints Fasteners (B) (Max): 48.80
  • Transverse Pitch (P1): 13.92
  • Projected Bearing Area Sq.cm: 1.50
  • Avg. Weight Per Metre (Kg): 1.94
  • Tensile Strength (Kgf) (Min): 4850
  • Check Mark Estimated Delivery : Up to 4 business days
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The Diamond British Standard Triplex Chain (D08303) is a high-performance triple-strand roller chain built to conform with British Standard (BS) specifications. Engineered for robust power transmission, this triplex chain is ideal for demanding applications requiring superior strength, durability, and long service life.

Made from premium-grade steel, the D08303 provides increased load-bearing capacity and reduced wear, making it suitable for use in high-torque and continuous operation environments such as conveyors, heavy machinery, and industrial automation systems. The triplex design ensures smoother power transmission, lower vibration, and extended operational longevity.

Whether in manufacturing, agriculture, or material handling, this chain offers reliable performance in tough and dynamic applications.

Key Features:

  • Triplex (three-strand) chain construction for enhanced load capacity

  • Precision-engineered to meet British Standard (BS) requirements

  • High resistance to fatigue, abrasion, and environmental factors

  • Optimized for consistent, high-speed, and high-torque operations

  • Suitable for industrial machinery, conveyors, and power drives

The D08303 is a trusted solution for professionals seeking a rugged and efficient triplex roller chain for demanding systems.

Size ( Pitch x WIP ) (in mm)

12.70 x 7.75

Size ( Pitch x WIP ) (in inches)

1/2 x 5/16

Pitch(P)

12.70

Width Between Inner Plates (W) (Min)

7.75

Roller Dia (D) (Max)

8.51

Bearing Pin Dia (d) (Max)

4.45

Plate Height (H) (Max)

11.80

Width Over Bearing Pin (A) (Max)

44.90

Width Over Joints Fasteners (B) (Max)

48.80

Transverse Pitch (P1)

13.92

Projected Bearing Area Sq.cm

1.50

Avg. Weight Per Metre (Kg)

1.94

Tensile Strength (Kgf) (Min)

4850

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