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Diamond British Standard Triplex chain (D40003)- 40B3 – 2 1/2″ Tx

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The Diamond British Standard Triplex Chain (D40003) is a robust triple-strand roller chain engineered for heavy-duty applications demanding maximum strength and performance.

Product Highlights

  • Size ( Pitch x WIP ) (in mm): 63.50 x 38.10
  • Size ( Pitch x WIP ) (in inches): 2½ x 1½
  • Pitch(P): 63.50
  • Width Between Inner Plates (W) (Min): 38.10
  • Roller Dia (D) (Max): 39.37
  • Bearing Pin Dia (d) (Max): 22.89
  • Plate Height (H) (Max): 52.90
  • Width Over Bearing Pin (A) (Max): 227.00
  • Width Over Joints Fasteners (B) (Max): 237.00
  • Transverse Pitch (P1): 72.29
  • Projected Bearing Area Sq.cm: 37.85
  • Avg. Weight Per Metre (Kg): 45.97
  • Tensile Strength (Kgf) (Min): 96860
  • Check Mark Estimated Delivery : Up to 4 business days
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The Diamond British Standard Triplex Chain (D40003) is a high-capacity, triple-strand (triplex) roller chain designed to meet the rigorous demands of industrial power transmission systems. Built to British Standard specifications, this chain ensures reliable performance, high tensile strength, and superior durability in continuous and heavy-load operations.

Crafted with premium-grade materials and precision engineering, the D40003 features three synchronized rows of rollers that provide enhanced stability and load distribution. This triplex design is ideal for use in conveyors, large machinery, and mechanical drives where minimal downtime and maximum efficiency are critical.

Engineered for smooth engagement and prolonged service life, the D40003 chain resists elongation, fatigue, and environmental wear, making it a reliable choice for high-stress industrial environments.

Key Features:

  • Triplex (triple-strand) configuration for high power transmission

  • Conforms to British Standard dimensions

  • Excellent fatigue resistance and durability

  • Suitable for continuous operation under demanding conditions

  • Optimized for minimal maintenance and long operational life

The D40003 Triplex Chain is your go-to solution for maximizing efficiency and durability in high-load mechanical systems.

Size ( Pitch x WIP ) (in mm)

63.50 x 38.10

Size ( Pitch x WIP ) (in inches)

2½ x 1½

Pitch(P)

63.50

Width Between Inner Plates (W) (Min)

38.10

Roller Dia (D) (Max)

39.37

Bearing Pin Dia (d) (Max)

22.89

Plate Height (H) (Max)

52.90

Width Over Bearing Pin (A) (Max)

227.00

Width Over Joints Fasteners (B) (Max)

237.00

Transverse Pitch (P1)

72.29

Projected Bearing Area Sq.cm

37.85

Avg. Weight Per Metre (Kg)

45.97

Tensile Strength (Kgf) (Min)

96860

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