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Diamond British Standard Triplex chain (D28003) – 28B3 – 13/4″ Tx

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The Diamond British Standard Triplex Chain (D28003) is a heavy-duty, triple-strand roller chain engineered for maximum strength and efficiency in high-load industrial power transmission systems.

Product Highlights

  • Size ( Pitch x WIP ) (in mm): 44.45 x 30.99
  • Size ( Pitch x WIP ) (in inches): 1¾ x 1.22
  • Pitch(P): 44.45
  • Width Between Inner Plates (W) (Min): 30.99
  • Roller Dia (D) (Max): 27.94
  • Bearing Pin Dia (d) (Max): 15.90
  • Plate Height (H) (Max): 37.00
  • Width Over Bearing Pin (A) (Max): 184.00
  • Width Over Joints Fasteners (B) (Max): 191.40
  • Transverse Pitch (P1): 59.56
  • Projected Bearing Area Sq.cm: 21.78
  • Avg. Weight Per Metre (Kg): 25.38
  • Tensile Strength (Kgf) (Min): 54040
  • Check Mark Estimated Delivery : Up to 4 business days
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The Diamond British Standard Triplex Chain (D28003) is a robust and reliable triple-strand roller chain specifically designed to meet the demands of high-performance industrial applications. Manufactured to precise British Standard specifications, this triplex chain incorporates three parallel strands of rollers, offering significantly increased strength and durability compared to standard chains.

Ideal for heavy-duty machinery and power transmission systems, the D28003 chain ensures smooth and consistent operation under high loads and extended duty cycles. Constructed from premium-grade steel and treated for enhanced hardness and wear resistance, this chain provides excellent fatigue strength and a long service life, reducing the need for frequent replacements and minimizing downtime.

Whether used in conveyor systems, industrial drives, or mechanical processing equipment, the D28003 Triplex chain delivers reliable, high-performance operation in even the most demanding environments.

Key Features:

  • Triplex roller chain with three strands for superior strength

  • Built to conform with British Standard (BS) specifications

  • Heat-treated alloy steel construction for maximum wear resistance

  • Ideal for continuous, high-load industrial use

  • Long-lasting performance with low maintenance needs

The D28003 Triplex Chain is a dependable solution for industries that demand power, precision, and endurance in their chain-driven systems.

Size ( Pitch x WIP ) (in mm)

44.45 x 30.99

Size ( Pitch x WIP ) (in inches)

1¾ x 1.22

Pitch(P)

44.45

Width Between Inner Plates (W) (Min)

30.99

Roller Dia (D) (Max)

27.94

Bearing Pin Dia (d) (Max)

15.90

Plate Height (H) (Max)

37.00

Width Over Bearing Pin (A) (Max)

184.00

Width Over Joints Fasteners (B) (Max)

191.40

Transverse Pitch (P1)

59.56

Projected Bearing Area Sq.cm

21.78

Avg. Weight Per Metre (Kg)

25.38

Tensile Strength (Kgf) (Min)

54040

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